-
example4_6
：滤波
fs=400 采样频率,必须大于两倍基带信号最高频率
ts=1/fs 采样时间间隔
T=5 时间窗大小
t=0:ts:T (hf1=zeros(1,N)
hf1(f<=B1&f>=-B1)=1
y1=hf1.*fftshift(y)
figure
subplot(211)
plot(f,abs(fftshift(y))/N,f,hf1, r-- )
axis([-fs/2,fs/2,0,1.2])
title( 原信号频谱 )
xlabel( f /Hz )
subplot(212)
plot(f,abs(y1)/N)
title( 低通滤波，截止频率90Hz )
xlabel( f /Hz ))
- 2010-05-25 20:58:05下载
- 积分：1
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hechengkongjing
此为一个合成孔径雷达的MATLAB仿真程序。(Synthetic aperture radar MATLAB simulation program.)
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Matlab_NR
电力系统稳态潮流程序，极坐标和直角坐标程序(Power system steady trend procedures, polar and rectangular coordinates program)
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example4_3
例3：分析占空比为ta的矩形脉冲频谱
T=1 时间窗大小
ta=0.5 占空比
N=256
t=linspace(-T,T,N)
ts=2*T/N
fs=1/ts
(x=zeros(1,N)
x(N/2-round(N/2*ta):N/2+round(N/2*ta))=ones(1,2*round(N/2*ta)+1)
y=fft(x,N)
figure
plot(t,x)
title([ 时域信号图 占空比为 ,num2str(ta)])
axis([-T T-0.2 1.2])
xlabel( t /s )
figure
subplot(211)
f=linspace(-fs/2,fs/2,N)
plot(f,abs(fftshift(y))/N)
title([ 矩形脉冲双边谱 脉冲时间t=[- ,num2str(ta*T), , ,num2str(ta*T), ] ])
xlabel( f /Hz )
)
- 2010-05-25 20:59:59下载
- 积分：1
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The-nonlinear-least-square-method
c语言非线性最小二乘法的程序，解决非线性最小二乘法问题(The nonlinear least square method)
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Bbeiijingyidoa
背景移动补偿技术的研究，是关于车辆检测期间对于背景移动的情况进进行的补偿技术的改进性的研究，希望对大家有所帮助。 已通过测试。
(Background compensation mobile technology, are about the context of vehicle detection during the moovement for the compensation technique to improve the research, hoping for U.S. help. Have passed the
)
- 2012-05-18 15:55:16下载
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dongtai
手势识别基于matlab源代码,包括相应的源代码,可以直接运行,效果良好,适合初学者学习
(Gesture recognition based on the matlab source code, including the corresponding source code, can be directly run, the effect is good, suitable for beginners to learn
)
- 2014-11-09 11:41:09下载
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gupiaoshuju
读取股市中散户，大户，超大户资金进出数量(Read the stock market, individual investors, large, super large amount of money out of)
- 2009-12-14 18:15:43下载
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shiyan2
通信网实验报告 用MATLAB实现话务量的计算(Communication network traffic using MATLAB realize the calculation)
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VCamatlab
VC++与matlab混合编程实例和VC调用matab生成的DLL说明(The mixed VC++ with matlab programming examples and generated by the VC call matab DLL description)
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