[Discuss-gnuradio] how to do channel estimation in narrowband

[yeran]

Hi everyone,

I'm trying to estimate the channel frequency response in narrowband in benchmark. But the result I get looks like a sine wave. Anyone knows how to do channel estimation in narrowband? And in GNU Radio and USRP transmission, when the carrier frequency is added and taken off?

Thanks!! Looking forward to your suggestions!

Regards,
Ada