# Channel sounding in GNU Radio **URL:** \ **Category:** GNU Radio\ **Created:** [August 21, 2015, 2:09am UTC](https://www.ruby-forum.com/t/channel-sounding-in-gnu-radio/243097 "2015-08-21T02:09:42Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![Sadaf\_N](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/858c86/32.png) [@Sadaf\_N](https://www.ruby-forum.com/u/Sadaf_N)\ **Post date:** [August 21, 2015, 2:09am UTC](https://www.ruby-forum.com/t/channel-sounding-in-gnu-radio/243097/1 "2015-08-21T02:09:42Z")
Hello, I’m sending a specific frame (length 400 bits), and I would like to examine the received signal through the channel (delay profile, coherence time, …). At the receiver, I have In Phase and Quadrature part. Is it a way to channel sounding ? Thanks to an existing library ? Thank you. Best regards. Caspar S. – View this message in context: [http://gnuradio.4.n7.nabble.com/Channel-sounding-in-GNU-Radio-tp55551.html](http://gnuradio.4.n7.nabble.com/Channel-sounding-in-GNU-Radio-tp55551.html) Sent from the GnuRadio mailing list archive at [Nabble.com](http://Nabble.com). ---
**Author:** ![klaussit](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/k/bc79bd/32.png) [@klaussit](https://www.ruby-forum.com/u/klaussit)\ **Post date:** [August 21, 2015, 3:18am UTC](https://www.ruby-forum.com/t/channel-sounding-in-gnu-radio/243097/2 "2015-08-21T03:18:04Z")
Hi Caspar, Maybe gr-channelsounder > **[GitHub - gbaier/gr\_channelsounder: a correlation channel sounder for GNU Radio](https://github.com/gbaier/gr_channelsounder)** > > a correlation channel sounder for GNU Radio. Contribute to gbaier/gr\_channelsounder development by creating an account on GitHub. is of interest? Generally, that correlation channel sounder allows you to apply a signal that contains all frequencies to the channel and then lets you deduct the channel effect on your particular signal. Best regards, Marcus