Dear all, I am using USRP N200 +UHD with the LFRX daughter board to detect a 100kHz coded sinusoid wave then down convert the signal to baseband to see the coding method. The flow graph I am using is:
u2=uhd.single_usrp_source(device_addr="addr=192.168.10.2",io_type=uhd.io_type_t.COMPLEX_INT16,num_channels=1) decim_coeffs = gr.firdes.low_pass(1.0, 60e3, #sampling frequency 30e3, #cutoff frequency .1e3, gr.firdes.WIN_BLACKMAN) decim_filter = gr.fir_filter_fcc(1,decim_coeffs) dst=gr.file_sink(gr.sizeof_gr_complex, filename) connect(u2, decim_filter,dst) I am curious about how to configure the io_type_t for the receiver? COMPLEX_INT16 represents complex signed integer, 16-bit integer. I found only this io type could match the type provided for the input of fir_filter. Do I misunderstand something for this io type selection? Really appreciate any of your help Thanks, Yan
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