{"id":78374,"date":"2012-08-03T11:08:30","date_gmt":"2012-08-03T17:08:30","guid":{"rendered":"http:\/\/dyspepsiageneration.com\/?p=78374"},"modified":"2012-08-03T11:08:30","modified_gmt":"2012-08-03T17:08:30","slug":"researchers-use-ambient-wifi-radio-waves-to-see-through-walls","status":"publish","type":"post","link":"https:\/\/dyspepsiageneration.com\/?p=78374","title":{"rendered":"Researchers Use Ambient WiFi Radio Waves to See Through Walls"},"content":{"rendered":"<p><a href=\"http:\/\/www.engadget.com\/2012\/08\/03\/researchers-use-wifi-radio-waves-to-see-through-walls\/\" target=\"_blank\">Read it.<\/a><\/p>\n<blockquote><p>Much like radar, the device relies on the Doppler effect &#8212; radio waves changing frequencies as they reflect off of moving objects &#8212; to identify motion. Using a radio receiver with two antennas and a signal-processing unit, the system monitors the baseline WiFi frequency in an area for changes that would indicate movement. In tests, the gadget was able to determine a person&#8217;s location, speed and direction through a foot-thick brick wall. The technology&#8217;s potential applications range from domestic uses to scanning buildings during combat. Best of all, since the university&#8217;s hardware doesn&#8217;t emit any radio waves, it can&#8217;t be detected. How&#8217;s that for stealthy?<\/p><\/blockquote>\n","protected":false},"excerpt":{"rendered":"<p>Read it. Much like radar, the device relies on the Doppler effect &#8212; radio waves changing frequencies as they reflect off of moving objects &#8212; to identify motion. Using a radio receiver with two antennas and a signal-processing unit, the system monitors the baseline WiFi frequency in an area for changes that would indicate movement. [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9],"tags":[],"class_list":["post-78374","post","type-post","status-publish","format-standard","hentry","category-news"],"_links":{"self":[{"href":"https:\/\/dyspepsiageneration.com\/index.php?rest_route=\/wp\/v2\/posts\/78374","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dyspepsiageneration.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dyspepsiageneration.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dyspepsiageneration.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/dyspepsiageneration.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=78374"}],"version-history":[{"count":2,"href":"https:\/\/dyspepsiageneration.com\/index.php?rest_route=\/wp\/v2\/posts\/78374\/revisions"}],"predecessor-version":[{"id":78376,"href":"https:\/\/dyspepsiageneration.com\/index.php?rest_route=\/wp\/v2\/posts\/78374\/revisions\/78376"}],"wp:attachment":[{"href":"https:\/\/dyspepsiageneration.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=78374"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dyspepsiageneration.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=78374"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dyspepsiageneration.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=78374"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}