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fse55456
快速fft的自编程序和DHT的程序，帮助理解FFT的原理和DHT的原理，进一步加快算法研究做好准备(Quick fft of self procedures and DHT program to help understand the principles and DHT FFT principle, ready to further accelerate the algorithm)
- 2014-09-28 10:51:28下载
- 积分：1
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bound2eight
次函数为数字图像处理中比较常用的源代码，一般的安装时并不包含次代码，共享一下。(Time digital image processing function for the more commonly used in source code, the typical installation does not include times when the code-sharing click.)
- 2007-12-14 18:50:06下载
- 积分：1
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222
讲述经验模态分解的应用，对于其原理及消噪功能有很好的介绍(About the application of EMD)
- 2011-01-13 11:38:12下载
- 积分：1
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computerwork_2
2. 设 是窄带信号，定义 是在 区间上均匀分布的随机相位。 是寬带信号，它是一个零均值、方差为1的白噪音信号e(n)激励一个线性滤波器而产生，其差分方程为 。
1） 计算 和 各自的自相关函数，并画出其函数图形。根据此选择合适的延时，以实现谱线增强。
2） 产生一个 序列。选择合适的 值。让 通过谱线增强器。画出输出信号 和误差信号e(n)的波形，并分别与 和 比较。
(Computer Experiments:
1. Consider an AR process x(n) defined by the difference equation
where v(n) is an additive white noise of zero mean and variance .The AR parameters and are both real valued:
a) Calculate the noise variance such that the AR process x(n) has unit variance .Hence , generate different realization of the process x (n).
b) Given the input x (n), an LMS filter of length M = 2 is used to estimate the unknown AR parameters and . The step size is assigned the value 0.05. Compute and plot the ensemble average curve of and by averaging the value of parameters and over an ensemble of 100 different realization of the filter. Calculate the time constant according to the experiment results and compare with the corresponded theoretical value.
c) For one realization of the LMS filter, compute the prediction error
And the two tap-weight errors
and
Using power spectral plots of , show that)
- 2020-06-28 19:40:01下载
- 积分：1
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session5
局部近似Taylor Series Expansion，全局近似Interpolation(Taylor Series Expansion，and Interpolation)
- 2014-01-15 14:45:31下载
- 积分：1
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bubble-grey-length-frequency
对于大量照片求取通道内气泡长度和频率生成信息，每张都求取，计算速度较慢(For a lot of photos to strike a channel length and frequency of the bubble generation information, each have to strike, the calculation speed is slow)
- 2013-11-14 16:18:20下载
- 积分：1
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AM_EPR
用于脉冲噪声去除的保边缘算法，效果很好，大家可以学习
(Paul edge for impulse noise removal algorithm works well, we can learn)
- 2012-10-24 21:43:10下载
- 积分：1
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44
说明： 子波模拟的程序，对于用信号处理方法处理勘探地震信号的同学们有一些帮助(Sub-wave simulation of the process, with the signal processing method for exploration seismic signal processing students have some help)
- 2011-01-13 11:55:52下载
- 积分：1
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sscomunication1
扩频通信 仿真的matlab源代码，仅供参考(Spread spectrum communication matlab simulation source code, for reference only)
- 2011-01-20 11:24:08下载
- 积分：1
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Huffman
用赫夫曼树进行编码和解码的相关操作，支持字符串的加密和解密(the procedure was wrote for huffman code ,which can be uesd to encode sting)
- 2014-11-25 15:25:38下载
- 积分：1
