?? signal_noise_real.m
字號:
%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
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