Chapter5

The Gauss-Seidel technique is intuitive and easy to use on large or small problems. However, you should beware that the convergence tolerance must be carefully selected. Because the convergence criterion is based on the error between iterations, the same convergence criteria may lead to very different results. The direct solution technique presented in Section 2.6.2 is generally preferred over an iterative technique like Gauss-Seidel iteration if a tool such as MATLAB that provides a computationally efficient means of solving sparse matrices is available.

耳蜗实质上相当于一个滤波器组，耳蜗的滤波作用是在对数频率尺度上进行的，在1000HZ下，人耳的感知能力与频率成线性关系；而在1000HZ以上，人耳的感知能力与频率不构成线性关系，而更偏向于对数关系，这就使得人耳对低频信号比高频信号更敏感。Mel频率的提出是为了方便人耳对不同频率语音的感知特性的研究。频率与Mel频率的转换公式为(Cochlear substantially equivalent to a filter set, cochlear filter is used on logarithm frequency scale, under the 1000 hz, the perception of the human ear and a linear relationship with frequency In more than 1000 hz, the perception of the human ear does not constitute a linear relationship with frequency, and prefer to logarithmic relationship, which makes the human ear is sensitive to low frequency signal is better than high frequency signal. Mel frequency is put forward in order to facilitate the ear of the study of speech perception characteristics of different frequency. For frequency and Mel frequency conversion formula )

频率域扫描建模，可以匹配传递函数，很实用的仿真。(Scanning frequency domain model, can match the transfer function, it is useful simulation.)

说明：  插值和拟合算法实验源代码，希望给大家带来帮助。(Interpolation and the fitting method experimental source code, hope to bring you help. )

This is sofe input and soft output programme you can use. Matlab is the similation tool.

huffman code and run length code on an image

两天线的通信系统，包括空时码的编解码程序，以及与HARQ结合的传输方案代码，信道为准静止的瑞丽衰落信道(Line a two-day communications systems, including space-time code codec procedures, as well as combined with the HARQ transmission program code, channel, whichever is Ruili static fading channel)

这是一个用vc和matlab混合变成的例子，在两者环境下结合编成是很好的思路，有很大的应用前景，希望对大家有所帮助(with vc and mixed into Matlab example, in other circumstances combined organization is a good idea, a great prospect, we hope to help)

pca图像融合原代码，功能能很强大,很实用(nice pca code )

for the dcm file read.