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学习matlab中的一些必知小程序，量小而实用(Learning matlab must know in some small programs, a small amount of and practical)

matlab中实现卡尔曼滤波和扩展卡尔曼滤波（EKF）的程序(matlab programes for Kalman filter and extended Kalman filter)

this is basic for understood radar

Simulink实现数字通信系统BCH码信道编码分析(BCH code channel coding analysis Simulink digital communication system)

这是在matlab下实现的包络检波算法。先对信号进行调制，然后进行包络检波。(This is achieved under matlab envelope detection algorithm. First signal modulation, and then proceed to the envelope detector.)

matlab差值拟合实验，内容很全，副文档(Difference fitting experiment, the content is very full, the Deputy Documents)

说明：  此程序为语音信号的过零率检测，白噪声过零率远远高于语音信号，故可通过对过零率的检测判断出是不是语音信号。(This procedure for the zero rate of speech signal detection, white noise zero crossing rate is much higher than the speech signal, it can zero rate by detection of voice signal is not judged.)

simple moving average filter

自动删除数据文件中的字母，只读取其中的数字行~~~(Automatically delete the data file of letters, which read only the number of line ~ ~ ~)

image recover matlab code (image recover matlab code)