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说明：  维吉尼亚密码应用系统MATLAB程序。基于MATLAB编写(Virginia password MATLAB application procedures. Prepared based on the MATLAB)

扩展卡尔曼滤波方法用于被动多传感器协同目标跟踪(Extended Kalman filter for passive multi-sensor collaborative target tracking)

九位m序列，用于直接序列扩频通信系统编程(Nine m sequence for direct sequence spread spectrum communication system programming)

this is the modulation techniques in matlab

FM demodulation signal

A hybrid Particle Swarm Optimization algorithm for functions in the real space. (Particle Swarm Optimization algo rithm for functions in the real space.)

本实验先利用Mathematica求解非线性方程（组）,探索不动点、混沌的性质(In this study, the first use of Mathematica for solving nonlinear equations (group), explore the fixed point, chaotic nature of the)

直升机模拟仿真,建模，仿真，源代码，有待改进。(Helicopter simulation, modeling, simulation, source code, to be improved.)

利用最小二乘迭代方法计算用户位置的matlab程序。(This is a least-squarels program writing with matab tool!)

Using GUI........................