md_sel_cc.py 文件源码

def gi_correlation(self, p_gi_len, p_symbol_len, signal):
        ''' Mode Erkennung '''
        corr_delay = p_symbol_len - p_gi_len 

        # Verzögertes Signal / Delay
        corr_A = signal[0:p_gi_len-1];
        corr_B = signal[corr_delay:len(signal)-1] 

        # Normierung
        corr_A =  corr_A / np.sqrt( np.sum(np.square(np.abs(corr_A))) )
        corr_B =  corr_B / np.sqrt( np.sum(np.square(np.abs(corr_B))) )

        # Korrelation
        erg_corr = np.correlate(corr_A,corr_B)

        return erg_corr[0]