CAcode

IIR数字滤波器的特点是h(n)为无限长序列。设计的基本思想是：模拟系统与离散系统存在着互相模仿的理论基础，所以可以让数字滤波器的特性去模仿一个模拟滤波器的特性，得到数字滤波器的H(z)，H( )之间的变换关系。设计时，先设计一个模拟滤波器的传递函数 ，然后通过s变量与z变量之间的变换关系求出数字滤波器的系统函数H(z)。(IIR digital filter is characterized by h (n) for infinitely long sequence. The basic idea of the design are: analog systems and discrete systems there is the theoretical basis of mutual imitation, so you can make the characteristics of a digital filter to imitate the characteristics of an analog filters, digital filters are H (z), H () of the the relationship between the transformation. Design, first to design a simulation of the filter transfer function, s variables and z and then transform the relationship between variables derived digital filter system function H (z).)

说明：  《精通matlab7》书中的绘图程序，二维、三维、特殊图形的绘制(&quot Proficient matlab7&quot book drawing program, two-dimensional, three-dimensional, special graphics rendering)

matlab 从心电信号中计算心率的小程序，很好用！！(matlab calculate heart rate from ECG small program, easy to use! ! )

用于指导SIMULINK环境下的电力系统仿真！(guiding for Power System Simulation under SIMULINK environment!)

huffman and entropy approach

基于Googlechar 的图表实现，可以运行的(basic on Googl char，it can work !with Chars)

对正弦波进行FFT（快速傅立叶变换）得到幅频谱图，均方根谱图，功率谱图，对数谱图，并进行IFFT恢复出正弦波。(FFT and IFFT)

MATLAB中实现中值滤波的算法的M文件。经过验证可以实现滤波效果。(MATLAB implementation of the algorithm for filtering the M documents. Filtering can be achieved proven results.)

说明：  S-函数产生正弦波 文件名：ch2example17.mdl(S-Function generator sine wave file name: ch2example17.mdl)

实现了一个复高斯信道，以及收和发端的相关矩阵(Implements a complex Gaussian channel, as well as the originator of the correlation matrix of received and)