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非线性动力学-分岔图-matlab-程序，弹簧质量系统在简谐激励作用下的的首破振动(Nonlinear dynamics- bifurcation diagram-Matlab-program, the spring mass system under harmonic excitation is broken vibration)

用matlab实现信号的加窗傅里叶变换，并绘出结果。(Using matlab to achieve signal windowed Fourier transform, and mapped the results.)

直接扩频系统常用函数，有助于对直接扩频系统的算法研究。(functions for Direct spread spectrum system,guod referense for the study for Direct spread spectrum system)

function S = steeringv(M,x) define steering vector free space wavelength of 15cm at resonant freq of 2GHz lamda = 0.15 d = lamda/2 inter-element spacing K = 1:M x is DOA of the received signal S = exp((-2*pi*j*(K-1)*d*sin(x))/lamda)

实现了以惯导为基准的组合导航系统，完成了组合导航系统的故障诊断(Achieved with a combination of inertial-based navigation system, the completion of the integrated navigation system fault diagnosis)

说明：  pso优化lssvm代码，用于回归预测等可以获得更好的效果(PSO optimizes the LSSVM code, which can be used for regression prediction to get better results)

the Lagrange coefficient polynomials

This file contains the PID controller design using MATLAB.

球形检测算法，2*2的MIMO通信系统，平稳瑞利衰落信道(Sphere detection algorithms, MIMO communication system 2* 2, steady Rayleigh fading channels)

说明：  专门用于求解TSP问题的matlab编制的蚁群算法,此程序的优化效率和鲁棒性都非常好(Ant Colony Algorithm for Traveling Salesman Problem,very efficient and robust)