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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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satellite
这是卫星通信方向图测量软件
采用了VB编程,整个源代码通用
方便使用(This is a satellite communication pattern measurement software using VB programming, the entire source code to facilitate the use of generic)
- 2008-08-13 10:57:15下载
- 积分:1
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FFT1
说明: 使用VC与MATLAB混合编程实现了一路波形信号的FFT变换,简单修改后可以应用于信号处理程序中,由于使用了混合编程,大大减少了代码编写工作量(The use of VC and Matlab MATLAB waveform signals all the way FFT transform, simple modifications can be applied to signal processing procedures, the use of hybrid programming, greatly reducing the workload coding)
- 2008-11-24 16:44:42下载
- 积分:1
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knn-code
给定一个样本集exset,样本数为M,每个样本点是N维向量,对于给定目标点d,d也为N维向量,要从exset中找出与d距离最近的k个点(k<=N)(knn code c++)
- 2012-04-13 11:34:28下载
- 积分:1
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main
Threshold
Adaptive Threshold
- 2014-01-12 22:26:26下载
- 积分:1
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MATLAB
关于学习C++的资料,适合初学者使用,有关数学建模(Learning C++ on the information, suitable for beginners, the mathematical modeling)
- 2010-09-28 10:55:32下载
- 积分:1
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Atmega128
Atmega128的一些程序,包括流水灯,PWM等(The Atmega128 some of the procedures, including water lights, PWM, etc.)
- 2012-04-14 22:46:35下载
- 积分:1
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lyap_r
计算癫痫脑电非线性动力学之一的lyapunov指数(calculated EEG epilepsy nonlinear dynamics, one of the lyapunov index)
- 2007-05-12 21:11:05下载
- 积分:1
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MATLAB-c
msk的调制解调MATLAB源代码,很不错,值得看看(msk modulation and demodulation MATLAB source code, very good, worth a look)
- 2013-11-15 16:35:31下载
- 积分:1
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Memory_2005
介绍了关于memory的相关函数,对于大多数程序员有很大帮助,希望大家多多使用(the information about memory)
- 2013-10-11 11:26:50下载
- 积分:1