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  • 大小: 2KB
    文件類型: .m
    金幣: 1
    下載: 0 次
    發布日期: 2021-05-19
  • 語言: Matlab
  • 標簽: CFAR??

資源簡介

CFAR matlab

資源截圖

代碼片段和文件信息

clear?all;
close?all;
clc;
%%%%%%%%%%%產生瑞利噪聲%%%%%%%%%%%%%%%%%%%%%%%
sigma=2;
t=1e-3;
fs=1e6;
ts=1/fs;
t1=0.05e-3:1/fs:0.2e-3-1/fs;
n=length(t1);
rand(‘state‘0);
u=rand(1n);
rayleigh_noise=sqrt(2*log2(1./u))*sigma;

%%%%%%%%%%%%產生目標回波%%%%%%%%%%%%%%%%%%%
N=t/ts;
s_pc_1=[zeros(1100)1zeros(1N-101)];
noise=rand(1N);
rayleigh_clutter=[zeros(150)rayleigh_noisezeros(1N-200)];
s_pc=s_pc_1+0.1*rayleigh_clutter+0.1*noise;
figureplot((0:ts:t-ts)s_pc)
xlabel(‘t(單位:s)‘)title(‘疊加了瑞利分布雜波、熱噪聲的目標回波‘);

%%%%%%%%%%%%%慢門限恒虛警處理%%%%%%%%%%%%%%%%%%%
?cfar_result=zeros(1N);
?cfar_result(11)=s_pc(11);
?for?i=2:N
?????cfar_result(i)=s_pc(1i)/mean(s_pc(11:i));
?end
?figureplot((0:ts:t-ts)cfar_result)
xlabel(‘t(單位:s)‘)title(‘采用慢門限處理結果‘);

%%%%%%%%%%%%%%%快門限恒虛警處理%%%%%%%%%%%%%
cfar_k_result=zer

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