Re: [Discuss-gnuradio] FSK - newbie questions

2007-12-26 Thread benjar
Ed, Your response is useful, but I too am curious about where to find some documentation regarding the correlator block. 1) I can look at the source code for gr_simple_correlator, and see that it is a "finite state machine", but I have no idea what the block is doing in each of the states. I lo

Re: [Discuss-gnuradio] FSK - newbie questions

2007-12-03 Thread Ed Criscuolo
Fergus Noble wrote: Also I have noticed in some of the MSK examples use the quadrature demodulator block, is this applicable to non-continuous phase FSK and if so is it more robust than the filter method? I have used the quadrature demodulator block on GMSK (which is also non-continuous phas

[Discuss-gnuradio] FSK - newbie questions

2007-12-02 Thread Fergus Noble
Hi, I'm currently working on implementing a 2-level FSK receiver with gnu radio and have got a simple demo running which uses bandpass filters to isolate the mark and space freqs and finds the difference in their amplitudes. The input to the system is currently from the sound card, from an no