[Discuss-gnuradio] Regarding nbfm_tx , and nbfm_rx

[Arora_Amit]

Hi All,

 

We are implementing our algorithms on USRP board, and our flow goes like this :

 

Transmitter part:

 

Audio input from PC --à Modulation (not a standard modulation as in USRP examples, we are implementing our own modulation technique specific to our application , and we have developed algorithms for the same too) --àIFFT ----à Towards Transmitter USRP

 

Receiver Side:

 

Received signal from USRP Antenna --à Demodulate the signal --à FFT --à Output to PC sound card.

 

We are modifying the usrp examples program : “nbfm_ptt_quick_and_dirty.py” , and trying to modify the same according to our application .

 

We are not able to find out what the following function does and do we need to include in our program:

1. blks.nbfm_tx(fg, self.audio_rate, self.usrp_rate)
2. blks.nbfm_rx(fg, audio_rate, quad_rate)

 

 

Will be helpful , if anybody can put some light on the same.

 

 

Thanks and Regards

Amit Arora

Bangalore, India.

E-mail: address@hidden

 

 

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