diphw3

采用RS码技术的系统仿真，程序说明详尽，是学习通信技术的一个难得的好材料。(RS code using the system simulation, a detailed description of the procedures is to learn a valuable communication technologies good material.)

guassian notch reject filter

说明：  MATLAB6.0数学手册-第3章，一本易于掌握的数学手册，内容由浅入深，对于初学者能很快掌握。(The MATLAB6.0 mathematics Manual- Chapter 3, a mathematical manual is easy to grasp, easy-to-digest content for beginners can quickly master.)

math function for learning methods

bit error rate versus capacity

实现了上跨零点法的matlab表达，可以用于实际数据处理，源码为函数形式。(the functiong of CrossZeroUp.m)

对机械类振动信号处理，时域内特征值得提取，均值、均方根、绝对平均幅值、峭度等(For mechanical vibration signal processing, time domain feature extraction worth, mean, RMS, mean absolute amplitude, kurtosis, etc.)

sonar demo using matlab

reads files and an offset to the coordinates of the selected objects

说明：  求解参数估计的常用算法——EM，即期望最大化算法，用于代替样本量不完全时的极大似然估计算法。(Common algorithm for solving parameter estimation- EM, expectation maximization algorithm is used to replace the sample size is not completely at the maximum likelihood estimation algorithm.)