Channel Model Block in GNU radio

GNU Radio
1

Hi,

I am working on the channel model block in GNU radio. I am confused in
setting up the taps.I have a random source that undergoes a QPSK
modulation
at 4 samples per second.Could you please explain me the concept under
setting the tap values.

I am supposed to use a polyphase clock synchronizer followed by a CMA
equalizer for analyzing the channel response.

Looking forward for your reply.

Thanks
Merry

2

Hi Merry,

the taps characterize the channel you want to simulate, so you will need
to calculate these based on your mathematical channel model. The
classical multipath channel model is a tapped-delay line-model, and that
kind of directly maps to the concept of filter taps.

Are you sure you do 4 samples per second? That seems to be incredible
little, especially when working with channel impulse responses.

Greetings,
Marcus