change-detect

CDMA二代移动通信的Matlab仿真程序段，运行良好。(CDMA second-generation mobile communication segment of the Matlab simulation program, run well.)

MUSIC算法是基于天线阵列协方差矩阵的特征分解类DOA算法，这里给出的是经典MUSIC源程序。(MUSIC algorithm is based on the characteristics of the antenna array covariance matrix decomposition class DOA algorithm presented here is the classic MUSIC source.)

Particle swarm optimization

用周期循环检测算法检测： 首先运行a.m程序，通过此程序运算得出循环频率a值； 再运行zhouqi.m程序，对a值进行确定，通过周期循环算法对信号进行检测； (With cycle detection algorithm to detect: First run am program, through this program computing a value obtained cyclic frequency zhouqi.m then run the program, for a value determined by the cycle algorithm of signal detection )

LDPC code construction

GNSS/INS组合导航的定位算法，18维状态空间，仿真验证程序。(GNSS/INS integrated navigation positioning algorithm, 18 dimensional state space, simulation verification program.)

说明：  将数组a[0]~a[size-1] 中重复的字母删除（仅仅保留第一次出现的字母，后续的重复字母均删除）(The array a [0] ~ a [size-1] Remove duplicate letters (just the first time to retain the letters, follow-up letters were removed duplication))

非线性滤波的程序，里面包含扩展卡尔曼滤波和无迹卡尔曼滤波滤波，可应用于很多非线性系统(Nonlinear filtering process, which includes extended Kalman filter and unscented Kalman filter filtering can be applied to many nonlinear system)

经典的二阶矩四阶矩信噪比估计，有不经过上采样、成型滤波和经过上采样、成型滤波的两种版本。加噪方式也分别用了matlab自带函数和自写两种版本。望大家参考。(Second Moment classic SNR estimation fourth moment, there is not through the sampling, the shaping filter and sampled, two versions of shaping filter. Plus noise mode were also comes with a matlab function and self-written versions. Hope you reference.)

二阶线性微分方程边值问题有限差分算法编程(Boundary value problems for second order linear differential equation finite-difference algorithm programming)