%產生實余弦信號signal與高斯噪聲noise的函數
   function   [signal_real,noise]=signal_noise_real(antenna_number,signal_number,samplepoint_number,SNR,signal_frequency,sample_frequency)
            %生成高斯噪聲
               sigma_noise=1;
               noise=normrnd(0,sigma_noise,antenna_number,samplepoint_number);
            %產生復正弦連續波信號signal
              signal_amplitude=sigma_noise*10.^(SNR/20);
              signal_initialphase=[50  87  124]*pi/180;
          for row_2=1:signal_number;           
                  for column_2=1:samplepoint_number;
                      signal_phase(row_2)=2*pi*signal_frequency*column_2/sample_frequency+signal_initialphase(row_2);
                                signal_complex(row_2,column_2)=signal_amplitude(row_2)*exp(j*signal_phase(row_2));
                      signal_real(row_2,column_2)=signal_amplitude(row_2)*real(exp(j*signal_phase(row_2)));
                 end;
          end;
    
   %產生復高斯信號源signal與高斯噪聲noise的函數
               %生成復高斯型信號源
               sigma_signal=sigma_noise*10.^(SNR/20);
               for  row_signal=1:signal_number
                    for column_signal=1:samplepoint_number;
                         p1=rand(1,1);
                         p2=rand(1,1);
                         signal_gauss(row_signal,column_signal)=sqrt(-2*sigma_signal(row_signal)^2*log(p1))*exp(j*(2*pi*p2));
                    end 
               end