Hi all,

I am working on the implementation of dynamic spectrum access with

gnuradio and usrp2. I modified usrp_spectrum_sense for usrp2 to do the

sensing job. However, I find the sensing speed is intolerably slow,

which is about 1s for 1MHz.

I try to reduce the fft size but no significant improvement. My goal is

to sense 4MHz in 10ms or so. I am wondering any ideas to improve the

speed? Or is there any other ways to sense faster?

Any help would be appreciated! Thank you.