Hi everyone,
I am alomost new to SDR world. I am working with only 1 RF channel of USRP X310, trying to make a distance measurement radar. But I don't know how to find the TX/RX time difference in GNU Radio or any other environment. I made a loopback and looked at the time sink. It does not look like the two signals are time-aligned. They have a random time difference each time I run the flowchart. The same happens for convolution or match filtering results. Do I have to use two channels? Should I use stream tags? Can someone please show me an example? Thank you.