[waqaraziz123]

Hey Every one, I am doing project on Design and Implementation of MIMO- OFDM System, if anyone have the idea how to program it using python then please let me know...

Regards

[Motoma]

If you have specific questions, we will gladly help you.

[waqaraziz123]

thanks for your reply

actually i run the program usrp_siggen.py using usrps and successfully received it. But i am unable to grasp the code, kindly if u can comment the code for me...or give me some idea about the code ( whats actually happening )

Thanks
Aziz

[SegFaulty]

If you could give us the actual code and what is confusing you we might be able to help.

[waqaraziz123]

I have seen the usrp_siggen code and correspondingly made the code for transmission and im successful in transmitting it but the problem i got is it has a very low amplitude and it doesnt produces a single frequency but sinusoids of different frequencies. The code i made is attached here....
kindly identify where i went wrong. Any help is highly appreciated. thanks in advance

Regards,
Waqar Aziz

#!/usr/bin/env python
from gnuradio import gr, gru
from gnuradio import usrp
import sys


class my_top_block(gr.top_block):
    def __init__(self):
        gr.top_block.__init__(self)
        self.interp = 64
        self.sink = usrp.sink_c (0, self.interp)   # Transmitter code
        self.usb_freq = 1000000
        self.src = gr.sig_source_c(self.usb_freq, gr.GR_SIN_WAVE, 2450000000, 32000, 0)
        self.src.set_frequency(input('Set the frequency'))

        self.connect(self.src, self.sink)


def main():
    
    tb=my_top_block()
    #tb.subdev.set_enable(True)                       # enable transmitter
    try:
        tb.run()
        
    except KeyboardInterrupt:
        pass


if __name__ == '__main__':
    main ()