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大小: 1KB文件類型: .rar金幣: 2下載: 1 次發(fā)布日期: 2021-03-08
- 語(yǔ)言: Matlab
- 標(biāo)簽: DRFM??sample??interval??轉(zhuǎn)發(fā)??干擾??轉(zhuǎn)發(fā)干擾??DRFM仿真??
資源簡(jiǎn)介
用Matlab仿真的基于DRFM的等間隔直接轉(zhuǎn)發(fā)干擾,內(nèi)有時(shí)域和頻域分析。
代碼片段和文件信息
clc
close?all;
clear?all;
T=100e-6;?????????????????????????????????%?脈沖持續(xù)時(shí)間
B=10e6;????????????????????????????????????%信號(hào)帶寬
K=B/T;????????????????????????????????????%調(diào)頻斜率
F0=0e6;??????????????????????????????????%載頻
Fs=50e6;Ts=1/Fs;??????????????????????????%?采樣時(shí)間及采樣時(shí)間間隔
N=T/Ts;???????????????????????????????????%采樣點(diǎn)數(shù)
%N=round(N);
A=1;??????????????????????????????????????%信號(hào)幅度
t=linspace(-T/2T/2N);???????????????????%時(shí)間序列
Xt=A*exp(j*2*pi*F0*t).*exp(j*2*pi*K*t.^2);??%?線性調(diào)頻信號(hào)
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%???????對(duì)線性調(diào)頻信號(hào)進(jìn)行制圖顯示?????%%%%%%%%%%%%%%%%
figure(1)
plot(treal(Xt));
axis?tight;
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%???????對(duì)矩形脈沖信號(hào)進(jìn)行傅里葉變換?????%%%%%%%%%%%%%%
figure(5);
Nfft=2^n
?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----
?????文件???????2392??2014-08-01?16:47??inequal_interval_sample.m
-----------?---------??----------?-----??----
?????????????????2392????????????????????1
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