PSA

基于平稳-非平稳的滤波技术，主要应用于信号滤波，去噪。(Based on the stationary- non-stationary filtering technology, mainly used in signal filtering, de-noising.)

频率解与动态区域解 频率普分析(Frequency spectrum analysis)

实现ukf滤波 目标跟踪 实现ukf ekf pf三种滤波算法的比较(Realization of UKF filtering target tracking Comparison of three filtering algorithms for UKF EKF PF)

说明：  本书全面的介绍了MATLAB的基础知识，对初学者很有用。(This book a comprehensive introduction to the basics of MATLAB for beginners useful.)

说明：  在matlab中画Lorenz吸引子的源代码(Lorenz attactor)

it is the matlab (.m) file used in teaching aids contains general teaching codes.

This M Code simulate the effects of clipping and filtering on PAPR PAPR reduction in OFDM-based wireless standard.Also the performance of BER versus SNR of original OFDM signals with PAPR reduction based on clipping and filtering schemes over AWGN channel is evaluated. The simplest and most widely used technique of PAPR reduction is to basically clip the part of signals that are outside the allowed region.Clipping methode introduces both in band distortion and out of band radiation into OFDM signals which degrades the performance including the BER and spectral efficiency.Filtering can reduce out of band radiation after clipping although it can not reduce in-band radiation distortion.However, clipping may cause some peak regrowth so that the signal after clipping and filtering will exceed the clipping level at some point.To reduce peak regrowth a repeated filtering and clipping operation can be used to obtain a desirable PAPR at a cost of computational complexity increase.

说明：  清空环境变量 网络结构建立 遗传算法参数初始化 迭代求解最佳初始阀值和权值 遗传算法结果分析 把最优初始阀值权值赋予网络预测 BP网络训练 BP网络预测 清空环境变量(Empty the environment variable Established network structure Genetic algorithm parameter initialization Iterative Solution optimum initial thresholds and weights Analysis of Genetic Algorithms The optimal initial threshold value is assigned to the right network prediction BP network training BP network prediction Empty the environment variable)

汽车变速箱的扭震模型。可以用来描述变速器的振动特性，本人自己编写的。(very perferct model of the gear box.)

isar转台仿真，仿真转目标成像，观察目标的三维图，等高图，距离压缩后的等高图(isar turntable simulation, simulation transfer target imaging to observe the target three-dimensional map, contour maps, contour map from the compressed)