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数字FIR滤波器器设计，通带截止频率0.3pi，阻带截止频率0.2pi，通带衰减《=1db，阻带衰减》=40db(Digital FIR filter design, the passband cutoff frequency 0.3pi, stopband cutoff frequency 0.2pi, pass-band attenuation " = 1db, stop-band attenuation" = 40db)

在MATLAB中用复合辛普森公式求函数的二重数值积分。(realizing double integral by Complex Simpsons Formula in MATLAB)

matlab回归分析工具箱，用于数据处理和统计分析建模(regression analysis matlab toolbox for data processing and statistical analysis modeling)

FIR 低通滤波器程序，matlab 实现(FIR filter using matlab)

基于MATLAB的近似熵程序,主要用与生物信号的检测,主要用于生物医疗工程的信号处理方面(matlab program for calculating approximate entropy in biomedical signal processing especially.)

基于matlab的通断键控调制模块，跟通信原理书上的2ask调制原理类似，在调用时，需要在主函数中加入调制信号，和进制数，一般是2(Matlab on-off keying modulation of the module, with the Communication Theory book 2ask similar modulation principle, in the call, there is a need to add in the main function of modulation signal, and the hexadecimal number, typically 2)

用G-N法求解非线性最小二乘优化问题 用修正G-N法求解非线性最小二乘优化问题 用L-M法求解非线性最小二乘优化问题 (GN method for solving nonlinear least squares optimization problems using a modified GN method for solving nonlinear least squares optimization problems using LM method for solving nonlinear least squares optimization problem)

一维光子晶体的程序！本篇所采用的数据来自：APPLIED PHYSICS LETTERS 77 3698中的的参数 (Process in photonic crystals! This used data from: APPLIED PHYSICS LETTERS 77 3698 in the parameters)

对声音信号的LMS滤波，噪音为固定信噪比的高斯噪声(LMS filtering of sound signals, noise, Gaussian noise for a fixed signal to noise ratio)

说明：  基于RLS算法的MATLAB程序，非常有用，可以试试，是源代码(RLS algorithm based on MATLAB program, very useful, you can try, is the source code)