ex_04_10_1

采用db4小波对是与信号进行降噪处理，实际效果良好(Using DB4 wavelet denoising is processing and signal, the actual effect is good)

卡尔曼滤波的小程序，是理解卡尔曼滤波的一个很好的例子。(Kalman filtering little procedure, Kalman filter is to understand a good example.)

Fast Newman算法实现社团发现，算法论文、源码和数据俱全。(Fast Newman to detect community structure)

用matlab实现RS（255,223）的编码，叫噪声，译码，并求出纠错个数，可以正确运行。(RS (255,223) coding using matlab, called noise, decoding, and calculated the number of error corrections, you can run correctly.)

it is about ldpc codes

说明：  a game

模式识别问题最近邻算法的matlab实现，可以模拟实现最近邻法的核心，是一个不错的代码( Nearest neighbor algorithm for pattern recognition problem of matlab to achieve, can simulate the nearest neighbor method to achieve the core of the code is a good)

matlab对语音信号进行滤波，使用fir低通滤波器(the speech signal matlab filter using FIR low-pass filter)

利用matlab对加速度传感器进行数据采集并计步。(This example shows how to collect acceleration data an Android device and use it to count the number of steps taken.)

采用牛顿拉夫逊法计算电网的潮流，各节点电压，各支路电流。(Newton Raphson power flow calculation, and each node voltage current in each branch.)