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Random_generate
生成给定分布律的随机数的matlab源码(Generate a given distribution law of random numbers of matlab source)
- 2008-07-27 12:26:30下载
- 积分:1
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alamouti2_2
source code for alamouti
- 2013-12-23 12:30:02下载
- 积分:1
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mcmcstat
马尔科夫链蒙特卡洛模拟(MCMC)matlab工具箱(Markov chain Monte Carlo (MCMC) matlab toolbox)
- 2015-09-01 11:07:56下载
- 积分:1
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FIR
1、验证窗函数 N 变化时,验证其频谱主瓣副瓣比、主瓣宽度的变化。
a)矩形窗函数的 N 变化时,验证其其频谱主瓣副瓣幅度比基本不会发生变化,
而主瓣宽度将会变窄。这说明,当用矩形窗函数设计滤波器时,增大 N 不能使
得阻带衰减减小,但能够减小过渡带。
b)再选取其他的窗如 hamming/hanning 窗,验证当 N 变化时,其频谱主瓣宽
度变化、主瓣副瓣比值变化情况。
2、用窗函数法设计线性相位 FIR 低通,通带截止频率 wp=0.5PI, 阻带截止频率 ws=0.6PI,
阻带衰减不小于 40dB,通带衰减不大于 3dB.
a)选取 Hanning,Hamming 窗查看设计出来的 FIR 的过渡带宽和阻带衰减是否
满足要求,二者有什么不同。
b)使用 hamming 窗,将窗长增大 1 倍,设计 FIR。验证同样的窗函数类型
(hamming),不同窗长度时,设计出来的 FIR 的过渡带宽和阻带衰减都有什么变
化。
3、不使用 Matlab 系统函数得到上一项指标的低通,并与上一项结果比较。
4 用窗函数法设计线性相位 FIR 高通,通带截止频率 wp=0.8PI, 阻带截止频率
ws=0.7PI, 阻带衰减不小于 30dB,通带衰减不大于 3dB.(An actual filter is implemented using the truncated unit impulse response sequence of the ideal filter.
For the ideal low pass filter, the unit impulse response h, N, D () is intercepted by a length of N, and the length is
The N sequence H (n), when intercepted, guarantees causality and linear phase requirements for the filter.
In order to reduce the Gibbs effect, the H (n) window is added, and the appropriate window function is selected to ensure the stopband attenuation and
Transition zone requirement. Note that the sidelobe of the window function affects the stopband attenuation of the filter, and the main lobe width affects the filter
Transition bandwidth.)
- 2017-07-06 11:55:24下载
- 积分:1
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text2image
here is a code for text to image compression. you can convert your .txt file to jpeg image
- 2014-09-10 20:28:56下载
- 积分:1
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newton_interpolation
牛顿插值,前插共识,前插公式,用matlab实现数值计算方法中的牛顿向前插值公式。(newton_interpolation)
- 2010-11-16 17:03:53下载
- 积分:1
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code
基于LPP的人脸识别程序,用matlab编程,实现训练,测试,识别等功能(Face recognition based on LPP program,Using MATLAB programming, training, testing, identification and other functions)
- 2012-05-12 10:14:35下载
- 积分:1
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doarima
ARIMA模型,用来对非平稳信号的功率谱估计,很有用!(ARIMA model, used for non-stationary signals in power spectrum estimation, very useful!)
- 2007-07-21 11:54:11下载
- 积分:1
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spacetimecodingprojecMatlab
完整的空时码链路仿真多发射天线多接收天线空时分集系统的具体代码实现和误码性能评估(Complete space-time code simulation multi-link multi-receiving antennas transmitting antennas Space Time Set system specific code and error performance evaluation)
- 2007-09-18 10:32:25下载
- 积分:1
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waveletdenoising
wavelet小波通用去噪方法,包括几幅雷达图像(General wavelet wavelet denoising methods, including the pieces of radar images)
- 2010-05-06 10:29:11下载
- 积分:1