GNU Radio working - finally

Curious as I am, I bought myself GNU Radio hardware (USRP) quite a while ago. Now I've also bought a TVRX, RFX400 and RFX900. Check out Ettus research's website for more info on the hardware.

After a few nights of experimenting, I reinstalled my MacBook, installed MacPorts, all dependencies and the recently released GNU Radio 3.2 from svn.

After solving some stupidity I finally managed to build it last night and tune in to a local FM radio station ;). For listening to radio an investment of USD 2k in hardware might be a little overkill.

I'd like to experiment with detection of incumbent users as described on the tools4sdr web site...

My plan looks somehow like this:

- record some sample data from the entire TV band (only TV channels, of course) using the USRP
- implement the already existing proposals in Matlab, if the code isn't already out there
- evaluate the performance of the different approaches
- pick the most reliable (or fastest?) algorithm and implement it in GNU Radio either using Python or C++ to allow for real time detection of TV, DTV and PSME
- if that is still too slow, look if we can offload some of the work to the FPGA on the USRP

So long... we'll see how far I get