sk_dsp_comm/digitalcom.py
def QPSK_rx(fc,N_symb,Rs,EsN0=100,fs=125,lfsr_len=10,phase=0,pulse='src'):
    """
    This function generates
    """
    Ns = int(np.round(fs/Rs))
    print('Ns = ', Ns)
    print('Rs = ', fs/float(Ns))
    print('EsN0 = ', EsN0, 'dB')
    print('phase = ', phase, 'degrees')
    print('pulse = ', pulse)
    x, b, data = QPSK_bb(N_symb,Ns,lfsr_len,pulse)
    # Add AWGN to x
    x = cpx_AWGN(x,EsN0,Ns)
    n = np.arange(len(x))
    xc = x*np.exp(1j*2*np.pi*fc/float(fs)*n) * np.exp(1j*phase)
    return xc, b, data
def QPSK_rx(fc,N_symb,Rs,EsN0=100,fs=125,lfsr_len=10,phase=0,pulse='src'):
    """
    This function generates
    """
    Ns = int(np.round(fs/Rs))
    print('Ns = ', Ns)
    print('Rs = ', fs/float(Ns))
    print('EsN0 = ', EsN0, 'dB')
    print('phase = ', phase, 'degrees')
    print('pulse = ', pulse)
    x, b, data = QPSK_bb(N_symb,Ns,lfsr_len,pulse)
    # Add AWGN to x
    x = cpx_AWGN(x,EsN0,Ns)
    n = np.arange(len(x))
    xc = x*np.exp(1j*2*np.pi*fc/float(fs)*n) * np.exp(1j*phase)
    return xc, b, data
def QPSK_rx ( fc , N_symb , Rs , EsN0 = 100 , fs = 125 , lfsr_len = 10 , phase = 0 , pulse = 'src' ) : Ns = int ( np . round ( fs / Rs ) ) print ( 'Ns = ' , Ns ) print ( 'Rs = ' , fs / float ( Ns ) ) print ( 'EsN0 = ' , EsN0 , 'dB' ) print ( 'phase = ' , phase , 'degrees' ) print ( 'pulse = ' , pulse ) x , b , data = QPSK_bb ( N_symb , Ns , lfsr_len , pulse ) # Add AWGN to x x = cpx_AWGN ( x , EsN0 , Ns ) n = np . arange ( len ( x ) ) xc = x * np . exp ( 1j * 2 * np . pi * fc / float ( fs ) * n ) * np . exp ( 1j * phase ) return xc , b , data
This function generates
This function generates