Hello Akinyele: You do not need to use any specific modulation techniques to implement a channel sounder. This is because the receiver already knows the transmitted I-Q sequence, and correlation is taken directly on the incoming I-Q sequences to measure the channel.
Of course, you should still carefully design the transmitted sequences, as some sequences have poor correlation properties. Maybe you can use something like BPSK-modulated PN sequences. Regards, Kyeong Su Shin ________________________________ 보낸 사람: AKINYELE ITAMAKINDE via USRP-users <[email protected]> 대신 USRP-users <[email protected]> 보낸 날짜: 2020년 5월 28일 목요일 오전 8:26 받는 사람: [email protected] <[email protected]> 제목: [USRP-users] Modulation technique for sliding correlator channel sounder I am working on propagation channel measurement using a sliding correlator channel sounder flowgraph for Tx and Rx. The sliding correlator channel sounder flowgraphs I've gotten so far from internet search have no modulation technique. Does that show it does not require modulation technique? If yes, why? Thanks. Akinyele
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