kalmanshixian

对于卫星系统的优化，目前比较前沿的是基于多学科优化(MDO)的方法，文中重点对此方法进行了介绍。(For the satellite system optimization, more cutting edge is based on the current multi-disciplinary optimization (MDO) methods, the paper focus on this method were introduced.)

Matlab-频谱分析实例，大家有需要的可以下载来看看，谢谢支持(Matlab)

A SIMPLE BUT USFUL 2D FDTD MATLAB CODE2(USFUL 2D FDTD MATLAB CODE2)

Transformacion a Dbms

机械故障诊断方法概述 信号处理方法概述 齿轮箱故障诊断(Mechanical fault diagnosis method outlined signal processing method outlined gearbox fault diagnosis)

地震信号处理，虚同相轴方法预测层间多次波，将数据分成上下两部分，利用相关和褶积的原理预测出层间多次波。预测信号和原始信号在相位和振幅上存在差异，用L1范数匹配法进行匹配，其中，提供了两种方法解病态方程，分别为高斯-赛德尔方法和正则化方法。(Seismic signal processing, predicte internal multiples by construct virtual events .The data is divided into two parts, using the principle of correlation and convolution to predicte multiples. There are differences between the prediction signal and the original signal on the phase and amplitude, so we use the L1 norm method to match the singal.We provide two methods for solving ill equation, respectively Gauss- Seidel method and regularization method.)

说明：  研究基于粒子群算法控制系统PID参数优化设计方法以及对PID控制的改进。( study the optimal design of PID parameter of the control system based on Particle Swarm Optimization and find a way to improve the PID control. )

optical ray simulation code in matlab for system design

说明：  对倾转旋翼机的仿真，三个状态分别为悬停，过渡，和前飞(simulation fly hover transition and forward)

利用自相关函数可以进行分析时间序列里面存在的内部特征信息，可以分析这些得到自己有用的信息。(Using the autocorrelation analysis of time series can exist inside the internal characteristic analysis of these information, can get useful information.)