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激光窃听来势汹汹，技术已实现重大更新！商业秘密如何保护？

发布时间：1563180359

<blockquote style="margin: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; quotes: "" ""; color: rgb(62, 58, 57); white-space: normal;">前言：随着科技的发展，科技水平的逐渐提高。人们的生活水平也在逐步提升，人人都安居乐业，生活幸福美满。。。。并没有！技术本无罪，使用技术的人却可能有罪，近期高发的窃听偷拍事件就是典型的案例。不过这也不失为一件好事，大众的隐私保护意识终于开始慢慢觉醒了！虽然近期报导的都是民用级窃听偷拍设备作祟的案件，但是探逊科技不局限于民用，我们更是专业商用反窃听服务商。今天我们就来聊一聊，高端窃听设备——激光窃听器的前世今生。</blockquote><h1 style="margin: 0px; padding: 0px 0px 0px 30px; border-width: 0px 0px 1px; border-top-style: initial; border-right-style: initial; border-bottom-style: dashed; border-left-style: initial; border-top-color: initial; border-right-color: initial; border-bottom-color: rgb(221, 221, 221); border-left-color: initial; border-image: initial; font-weight: inherit; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 35px; z-index: inherit; height: 35px; position: relative; box-sizing: border-box; white-space: normal;">一、什么是激光窃听器？</h1><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;">大约从1970 年起激光窃听就已成为小道新闻中的话题偶尔还在通俗读物上报导。曾谣传苏联克格勃企图在美国商业部大楼屋顶上用激光窃昕白宫椭圆形办公室中的谈话。<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;">这玩意儿就像是小孩子玩的拉线电话一样，不过线被换成了激光，而对面的话筒，就是任何可以震动的，足够薄的坚固固态物体，通过人眼不可观察的红色激光反弹时因为震动所产生的变化进行远距离监听，虽然激光窃听器对于位置，角度，以及监听的时候，对应瞄准的材质有着诸多的要求，稍有错误就会罢工不再干活，但是依然是一种有效而难以防范的监听措施。<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;">由于激光窃听设备并不需要放置到被监听者的家里面，所以，对于屋内，和在场者的搜查是检查不出来这种窃听装备的。于是理所当然，这种玩意儿被加入了情报部监听套餐之中——只要在交战国的大使馆旮旯里面放上那么几套，或者通过特种部队之类的人员将它们放置在敌对国家，已暴露间谍的藏身处附近，就能够得到各种各样源源不断的情报。取得战争优先权。<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;"> <img src="http://p1.pstatp.com/large/pgc-image/0b3bb5d9eff245c980bd4db9d60d9666" alt="激光窃听来势汹汹，技术已实现重大更新！商业秘密如何保护？" data-bd-imgshare-binded="1" style="margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; vertical-align: baseline; list-style: none; line-height: 1.5; z-index: inherit; max-width: 600px; height: auto;"/><p class="pgc-img-caption" style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; vertical-align: baseline; list-style: none; line-height: 1.5; z-index: inherit; text-align: center;"> <h1 style="margin: 0px; padding: 0px 0px 0px 30px; border-width: 0px 0px 1px; border-top-style: initial; border-right-style: initial; border-bottom-style: dashed; border-left-style: initial; border-top-color: initial; border-right-color: initial; border-bottom-color: rgb(221, 221, 221); border-left-color: initial; border-image: initial; font-weight: inherit; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 35px; z-index: inherit; height: 35px; position: relative; box-sizing: border-box; white-space: normal;">二、激光窃听器的前世今生</h1><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;">最早的技术资料是亚历山大·格雷厄姆·贝尔和查尔斯·萨姆纳·泰恩特发明的光电话专利，这是一种通过调制光束（电磁波的窄投影）进行无线音频对话的电话。在那个遥远的时代，当公用事业尚不存在提供电力和激光甚至在科幻小说中都没有想到时，他们的发明没有实际应用，这在很大程度上受到阳光和良好天气的影响。类似于自由空间光通信，该发声器还要求发射器和接收器之间有清晰的视线。在光学家的原理发现它们在军事通信和后来的光纤通信中的第一次实际应用之前，还需要几十年的时间。<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;"> <p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;"> <p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal; text-align: center;"><img src="http://p1.pstatp.com/large/pgc-image/1f66315d983a422b9e6ddb7093580a3e" alt="激光窃听来势汹汹，技术已实现重大更新！商业秘密如何保护？" data-bd-imgshare-binded="1" style="margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; vertical-align: baseline; list-style: none; line-height: 1.5; z-index: inherit; max-width: 600px; height: auto;"/><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal; text-align: center;"> <p class="pgc-img-caption" style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal; text-align: center;"> <p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;"> <img src="http://p1.pstatp.com/large/pgc-image/091927f4aa604ee486de4ec5eeeae2e4" alt="激光窃听来势汹汹，技术已实现重大更新！商业秘密如何保护？" data-bd-imgshare-binded="1" style="margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; vertical-align: baseline; list-style: none; line-height: 1.5; z-index: inherit; max-width: 600px; height: auto;"/><p class="pgc-img-caption" style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; vertical-align: baseline; list-style: none; line-height: 1.5; z-index: inherit; text-align: center;"> <p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;">而到了现在，原理和设备已然进化了许多，而且激光窃听技术正在向高精尖的窃听设备发展。<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;">如今激光窃听最大的突破的就是——便携性！<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;">从前的激光窃听器需要极大的稳定性，因为设备的稳定与否会直接影响音质输出的好坏，所以往往会在一个较为固定的地方做基础。而现在已经实现了车载激光窃听器的便携构成，如此极大地方便了多地，多时，流动等条件，使得激光窃听器越加防不胜防。<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;"> <img src="http://p1.pstatp.com/large/pgc-image/34d39382e5ce43f2928ca3b5b0fc6d1a" alt="激光窃听来势汹汹，技术已实现重大更新！商业秘密如何保护？" data-bd-imgshare-binded="1" style="margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; vertical-align: baseline; list-style: none; line-height: 1.5; z-index: inherit; max-width: 600px; height: auto;"/><p class="pgc-img-caption" style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; vertical-align: baseline; list-style: none; line-height: 1.5; z-index: inherit; text-align: center;">激光窃听来势汹汹，技术已实现重大更新！商业秘密如何保护？<img src="http://p3.pstatp.com/large/pgc-image/fa962ba5771f4d33a96ecb73720367fe" alt="激光窃听来势汹汹，技术已实现重大更新！商业秘密如何保护？" data-bd-imgshare-binded="1" style="margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; vertical-align: baseline; list-style: none; line-height: 1.5; z-index: inherit; max-width: 600px; height: auto;"/><p class="pgc-img-caption" style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; vertical-align: baseline; list-style: none; line-height: 1.5; z-index: inherit; text-align: center;"> <h1 style="margin: 0px; padding: 0px 0px 0px 30px; border-width: 0px 0px 1px; border-top-style: initial; border-right-style: initial; border-bottom-style: dashed; border-left-style: initial; border-top-color: initial; border-right-color: initial; border-bottom-color: rgb(221, 221, 221); border-left-color: initial; border-image: initial; font-weight: inherit; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 35px; z-index: inherit; height: 35px; position: relative; box-sizing: border-box; white-space: normal;">三、激光窃听器的射程有多远？</h1><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;">关于激光窃听器的射程问题好奇实验室曾经做过这样一个评测：<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;">这就像是小孩子用纸杯玩的"拉线电话"一样<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;">只不过是把线换成了激光。<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;">因为激光窃听设备并不需要放置到对方办公室里<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;">所以很难被排查发现<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;">而且有效接收距离在1000多米<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;"> <img src="http://p1.pstatp.com/large/pgc-image/418f9b257f46413ab3f27d1c922a9a78" alt="激光窃听来势汹汹，技术已实现重大更新！商业秘密如何保护？" data-bd-imgshare-binded="1" style="margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; vertical-align: baseline; list-style: none; line-height: 1.5; z-index: inherit; max-width: 600px; height: auto;"/><p class="pgc-img-caption" style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; vertical-align: baseline; list-style: none; line-height: 1.5; z-index: inherit; text-align: center;"> <p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;">激光窃听被应用在窃取商业机密上<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;">这是好奇实验室第一次听说<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;">这种隔着玻璃监听的效果到底如何？<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;">声音还原度高不高？<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;">好奇君在有关部门的配合下做了一次测试<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;">好奇君坐在一辆关闭的车内聊天<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;">距离这辆车约300米的位置<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;">测试员利用专业设备仪器进行监听<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;">人正常说话的分贝是60—70DB<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;">悄悄话的分贝，也有40—50DB<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;">测试员分别测试了这两种情况<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;">结果300米之外的测试员<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;">都能听到实验员的说话声音<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;">虽然有电流的杂音<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;">但听清说话的内容没有问题<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;"> <img src="http://p3.pstatp.com/large/pgc-image/031a381dae8a4afe94cb0b32982ac137" alt="激光窃听来势汹汹，技术已实现重大更新！商业秘密如何保护？" data-bd-imgshare-binded="1" style="margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; vertical-align: baseline; list-style: none; line-height: 1.5; z-index: inherit; max-width: 600px; height: auto;"/><p class="pgc-img-caption" style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; vertical-align: baseline; list-style: none; line-height: 1.5; z-index: inherit; text-align: center;"> <img src="http://p1.pstatp.com/large/pgc-image/507c416133cf47448805af141d32a0da" alt="激光窃听来势汹汹，技术已实现重大更新！商业秘密如何保护？" data-bd-imgshare-binded="1" style="margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; vertical-align: baseline; list-style: none; line-height: 1.5; z-index: inherit; max-width: 600px; height: auto;"/><p class="pgc-img-caption" style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; vertical-align: baseline; list-style: none; line-height: 1.5; z-index: inherit; text-align: center;"> <img src="http://p3.pstatp.com/large/pgc-image/09d933af683643b8a59943ecc69cd739" alt="激光窃听来势汹汹，技术已实现重大更新！商业秘密如何保护？" data-bd-imgshare-binded="1" style="margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; vertical-align: baseline; list-style: none; line-height: 1.5; z-index: inherit; max-width: 600px; height: auto;"/><p class="pgc-img-caption" style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; vertical-align: baseline; list-style: none; line-height: 1.5; z-index: inherit; text-align: center;"> <p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;">激光窃听器哪里来的？<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;">国内某研究机构信息安全专家说<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;">现实中，如果真有人组装窃听工具<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;">用的是工业级桥梁激光测振仪<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;">这是一种对桥梁安全评估及类似领域中<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;">各种振动进行监测的设备<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;">但只要稍加改动就成了激光窃听器<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;">国际上有要求，这类仪器是禁止应用在窃听上的<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;">四、现代激光窃听器的原理是什么？<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;">在2009年以色列Bar-Ilan大学和西班牙de València大学的研究人员，开发出一种利用激光束远程感知声音的新方法，他们发布了一篇论文：《Simultaneous remote extraction of multiple speech sources and heart beats from secondary speckles pattern》<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;">这种光学方法，可以提取和分离远程声源。该方法是非常模块化的，并且它不应用关于声源和检测装置的相对位置的任何约束。进行检测的光学装置非常简单和通用。原理是观察当被激光束照射时在目标顶部产生的二次散斑图案的移动。成像光学器件的适当适应允许遵循那些斑点的时间轨迹并从处理的轨迹中提取声音信号。各种声源在不同的空间像素中成像，光学听音变成非常简单的任务。<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;">而当前国内外激光窃听技术由四大主流技术构成。分别是:强度探测技术、散斑技术、多普勒探测技术、相位探测技术。<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;">其中强度探测技术广为所知,即通过玻璃的振动还原成声音。因此此技术无法穿透玻璃使用,实际使用中局限性特别大,玻璃振幅非常小,噪声非常大,几乎无法在实战中得到使用。<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;">因此该技术无法在实战中使用,该技术多存在于激光教学演示场景。<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;">而散斑技术、多普勒和相位技术可以穿透玻璃,其选用的目标物大大增多,可以根据实际情况选择低声阻物品,大大提升使用效果。因此穿透玻璃的激光窃听是真正意义的激光窃听。<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;"> <img src="http://p9.pstatp.com/large/pgc-image/22cfc2b03d2a43538662052754059dc2" alt="激光窃听来势汹汹，技术已实现重大更新！商业秘密如何保护？" data-bd-imgshare-binded="1" style="margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; vertical-align: baseline; list-style: none; line-height: 1.5; z-index: inherit; max-width: 600px; height: auto;"/><p class="pgc-img-caption" style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; vertical-align: baseline; list-style: none; line-height: 1.5; z-index: inherit; text-align: center;"> <p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;">激光多普勒测振技术的原理是多普勒定律，反射光因物品振动的位移而产生多普勒效应，采集并还原多普勒信息即可获得振动物品的位移、速度、加速度等信息。技术相对成熟，德国某品牌激光测振仪即具有多年经验，占据了世界大半激光测振市场。多普勒测振精度高，理论上测试精度可以达到纳米量级，探测频率高。技术到位的情况下，分分钟可以把测振仪改造成激光监听设备。<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;">更为先进的多普勒相位探测技术：<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;">相位侦听技术采用相干探测技术，通过激光干涉原理对激光相位信息，并从中解出激光多普勒信息。再通过对激光多普勒信息的分析，最终获取声音。<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;"> <h1 style="margin: 0px; padding: 0px 0px 0px 30px; border-width: 0px 0px 1px; border-top-style: initial; border-right-style: initial; border-bottom-style: dashed; border-left-style: initial; border-top-color: initial; border-right-color: initial; border-bottom-color: rgb(221, 221, 221); border-left-color: initial; border-image: initial; font-weight: inherit; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 35px; z-index: inherit; height: 35px; position: relative; box-sizing: border-box; white-space: normal;">五、如何防范这些激光窃听？</h1><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;">1、提高警惕<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;">被窃听对象通常都是企业的企业CIO、CSO们。所以需要在日常生活中开会时，交谈时都留个心眼。<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;">2、警惕可能被窃听的位置<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;">■ 街道一侧的办公室/会议室：<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;">特别是一楼街面或街对面还有停车场的场景，简直就是专为被窃听准备的。<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;"> <img src="http://p1.pstatp.com/large/pgc-image/0a2cf6cf0115430b9774ceb65dace9e7" alt="激光窃听来势汹汹，技术已实现重大更新！商业秘密如何保护？" data-bd-imgshare-binded="1" style="margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; vertical-align: baseline; list-style: none; line-height: 1.5; z-index: inherit; max-width: 600px; height: auto;"/><p class="pgc-img-caption" style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; vertical-align: baseline; list-style: none; line-height: 1.5; z-index: inherit; text-align: center;"> <p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;">■距对面楼宇较近一侧的办公室/会议室：<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;">有些集团老总的办公室，喜欢大落地窗，大开间，显得气派有空间。但若是窗外对面30~80米就是另一栋大厦，这个就尴尬了。被看得清清楚楚明明白白。<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;">3、临时环境下如何应对？<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;">1在没有窗户的房间里交流<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;">效果显而易见，但是这样的话，将自己置身在密室，又有可能遭遇录音笔、无线窃听的威胁。低成本的做法是：对于临时性重要谈话，去KTV开个小包，打开音乐，贴近说话即可。当然，老板不在的时候，也许可以试试在会议室里这样搞起~~<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;">2在窗边制造混淆噪音<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Microsoft Yahei", "PingFang SC", Avenir, "Segoe UI", "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; vertical-align: baseline; list-style: none; color: rgb(62, 58, 57); line-height: 1.5; z-index: inherit; white-space: normal;">有点技术含量的做法：在窗玻璃上安装白噪声发生器，当然，录音干扰器也是个选择，前提是能覆盖到所有窗玻璃。低成本的做法是：拉上窗帘，将收音机放在窗台边上，打开音乐或者广播，制造近场音频混淆干扰：）

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