{"id":1694,"date":"2016-01-03T17:17:04","date_gmt":"2016-01-03T16:17:04","guid":{"rendered":"http:\/\/labalec.fr\/erwan\/?p=1694"},"modified":"2016-01-03T17:20:02","modified_gmt":"2016-01-03T16:20:02","slug":"sdr-as-in-software-defined-radio-part-4","status":"publish","type":"post","link":"https:\/\/labalec.fr\/erwan\/?p=1694","title":{"rendered":"SDR as in Software Defined Radio : part 4"},"content":{"rendered":"<p>In a previous article, we had managed to <a href=\"https:\/\/labalec.fr\/erwan\/?p=1436\" target=\"_blank\">snif &amp; record RF signals<\/a>, <a href=\"https:\/\/labalec.fr\/erwan\/?p=1457\" target=\"_blank\">decode it<\/a>\u00a0and <a href=\"https:\/\/labalec.fr\/erwan\/?p=1468\" target=\"_blank\">reproduce it with an\u00a0arduino<\/a>.<\/p>\n<p>Thus, even if you can visualize the wav form in Audacity (or any other sound editor), it is not easy to \u00ab\u00a0read\u00a0\u00bb the signal.<\/p>\n<p>The attached software (source code provided) will not only display the wave form, but also shape it as a \u00ab\u00a0square\u00a0\u00bb form\u00a0and eventually provide a textual reading (high for xx ms, low for xx ms, &#8230;).<\/p>\n<p>This makes it easier to reproduce (from an arduino) or eventually make a better guess at what the signal (or part of it) actually is.<\/p>\n<p>Below :<\/p>\n<p>1-the original wave form<\/p>\n<p>2-the square form<\/p>\n<p>3-a textual reading of the worm<\/p>\n<p><a href=\"http:\/\/imgur.com\/MHH8z18\"><img decoding=\"async\" src=\"http:\/\/i.imgur.com\/MHH8z18.png\" title=\"source: imgur.com\" \/><\/a><\/p>\n<p><a href=\"http:\/\/imgur.com\/yNBhslb\"><img decoding=\"async\" src=\"http:\/\/i.imgur.com\/yNBhslb.png\" title=\"source: imgur.com\" \/><\/a><\/p>\n<p><a href=\"http:\/\/imgur.com\/b04u3p3\"><img decoding=\"async\" src=\"http:\/\/i.imgur.com\/b04u3p3.png\" title=\"source: imgur.com\" \/><\/a><\/p>\n<p>Hope this helps others \ud83d\ude42<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In a previous article, we had managed to snif &amp; record RF signals, decode it\u00a0and reproduce it with an\u00a0arduino. Thus, even if you can visualize the wav form in Audacity (or any other sound editor), it is not easy to \u00ab\u00a0read\u00a0\u00bb the signal. The attached software (source code provided) will not only display the wave <a href='https:\/\/labalec.fr\/erwan\/?p=1694' class='excerpt-more'>[&#8230;]<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[18],"tags":[],"class_list":["post-1694","post","type-post","status-publish","format-standard","hentry","category-arduino","category-18-id","post-seq-1","post-parity-odd","meta-position-corners","fix"],"_links":{"self":[{"href":"https:\/\/labalec.fr\/erwan\/index.php?rest_route=\/wp\/v2\/posts\/1694","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/labalec.fr\/erwan\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/labalec.fr\/erwan\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/labalec.fr\/erwan\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/labalec.fr\/erwan\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1694"}],"version-history":[{"count":4,"href":"https:\/\/labalec.fr\/erwan\/index.php?rest_route=\/wp\/v2\/posts\/1694\/revisions"}],"predecessor-version":[{"id":1698,"href":"https:\/\/labalec.fr\/erwan\/index.php?rest_route=\/wp\/v2\/posts\/1694\/revisions\/1698"}],"wp:attachment":[{"href":"https:\/\/labalec.fr\/erwan\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1694"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/labalec.fr\/erwan\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1694"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/labalec.fr\/erwan\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1694"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}