Receiving METEOR M2 satellite images

[AhmedAmineEl]

Hello,

I am currently trying to decode a signal from the satellite meteor m2. which transmit a QPSK modulated signal.

I want to know how i can record the IQ baseband data in wav file using labview 2018.

The frequency is 137,9MHz with a bandwidth of 110KHz.

for the moment i only look to record the baseband with labview, and demodulate with a separate program.

I am using USRP 2091.

[paigec]

Hi, 

Thanks for reaching out with your question. Are you going to be continuously acquiring IQ data for this signal or a single shot / burst, for example?

There are a number of USRP examples available to use that can be used as a launch pad for your application. Those are found from your LabVIEW block diagram in the Functions Palette > Instrument I/O > Instr Drivers > NI USRP > Examples. Of these, and based on the answer to my previous question, the niUSRP EX One Shot Rx.VI could be an option to start with for simple receiving.  

Another forum posed a similar question for an FM signal (I recognize the modulation is not exactly the same but may provide guidance on the architecture), and it provided an example you can reference if desired as well. You should be able to define the file type by using a preferred File I/O function in the Programming > File I/O Palette. 

Cheers,

paigec