{"id":172,"date":"2013-10-26T09:18:02","date_gmt":"2013-10-26T08:18:02","guid":{"rendered":"http:\/\/www.eb3frn.net\/?p=172"},"modified":"2013-10-26T09:18:02","modified_gmt":"2013-10-26T08:18:02","slug":"rtlsdr-coherence-first-test","status":"publish","type":"post","link":"https:\/\/www.eb3frn.net\/?p=172","title":{"rendered":"RTLSDR Coherence first test"},"content":{"rendered":"

The first test to see the coherence of two rtlsdr in realtime consist in do a cross-correlation<\/a> of the two dongles, the cross-correlation is a measure of similarity of two signals.<\/p>\n

To do the test I used baudline<\/a> and tuned to a local VOR\/DME<\/a>. Here in the first picture can see some coherence of the two dongles using one antenna to every rtlsdr:<\/p>\n

\"RTLSDR<\/a>

RTLSDR baudline cross-correlation with 2 antennas<\/p><\/div>\n

Here the result if disconnect one antenna:<\/p>\n

\"RTLSDR<\/a>

RTLSDR baudline cross-correlation with 1 antenna disconnected<\/p><\/div>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

The first test to see the coherence of two rtlsdr in realtime consist in do a cross-correlation of the two dongles, the cross-correlation is a measure of similarity of two signals. To do the test I used baudline and tuned to a local VOR\/DME. Here in the first picture can see some coherence of the […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"spay_email":"","jetpack_publicize_message":"","jetpack_is_tweetstorm":false,"jetpack_publicize_feature_enabled":true},"categories":[1,6,7,3],"tags":[],"jetpack_featured_media_url":"","jetpack_publicize_connections":[],"jetpack_shortlink":"https:\/\/wp.me\/p31CYx-2M","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.eb3frn.net\/index.php?rest_route=\/wp\/v2\/posts\/172"}],"collection":[{"href":"https:\/\/www.eb3frn.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.eb3frn.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.eb3frn.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.eb3frn.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=172"}],"version-history":[{"count":1,"href":"https:\/\/www.eb3frn.net\/index.php?rest_route=\/wp\/v2\/posts\/172\/revisions"}],"predecessor-version":[{"id":175,"href":"https:\/\/www.eb3frn.net\/index.php?rest_route=\/wp\/v2\/posts\/172\/revisions\/175"}],"wp:attachment":[{"href":"https:\/\/www.eb3frn.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=172"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.eb3frn.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=172"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.eb3frn.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=172"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}