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本程序是一个基于matlab的雷达SAR成像自聚焦算法，对于学习雷达信号处理的人有帮助。(This procedure is a matlab-based imaging radar SAR Autofocus Algorithm for the study of radar signal processing has to help people.)

说明：  GPS种产生C_A码matlab仿真程序 (GPS code generated simulation program C_A)

股票数据绘图, suppose we place a limit order to sell at limit prices vol is the annual volatility of the stock and price is the current price. vol is output from estvol assumes we input Open, Close, High, Low, daily prices and the price( suppose we place a limit order to sell at limit prices vol is the annual volatility of the stock and price is the current price. vol is output from estvol assumes we input Open, Close, High, Low, daily prices and the price)

支持向量机参数选择，利用网格搜索法确定支持向量机的惩罚因子和RBF核参数(Support vector machine (SVM) parameters choice, the grid search method is used to determine the punishment factor and RBF kernel parameters of support vector machine (SVM))

使用个股日内髙频收益率计算己实现值进行分析,同时计算得到二阶矩 和高阶矩值并进行对比。本文根据己实现量的大小将所有样本股分为己实现值由 小到大的姐别,分别跟踪各股票组合的收益,探索预期收益与个股己实现值之间 的变化关系,然后将分组的结果应用于多空策略,为提高资产配置收益提供参考。 同时,将各己实现变量和各类对预期收益产生影响的控制变量放在一起构建 Fama-MacBeth截面回归,分析高频已实现量是否具有定价能力。(The realized value is calculated by using the daily gust rate of return of individual stocks, and the second-order moments are obtained by calculating at the same time. Comparisons are made with higher order moment values. This paper divides all sample stocks into realized values according to the size of realized stocks. Sisters from small to large track the earnings of each stock portfolio, and explore the relationship between expected earnings and the realized value of each stock. Then the grouping results are applied to the multi-empty strategy to provide reference for improving asset allocation returns.)

雷达/声纳正处理，常规巴特利特波束形成仿真。假设入射信号角度正横方向，M元接收阵对接收信号进行正负九十度的扫描。(Conventional beamforming for RADAR/SONAR. The source is supposed to be the broadband. there are M element array using for receiving.)

This is a code to determine the pitch period of voiced speech.

介绍了matlab中非线性整数规划箱，介绍了非线性整数规划的编程(Matlab introduced nonlinear integer programming box , introduces nonlinear integer programming programming )

说明：  matlab sym格式转换成char型和数值型的简易算法(sym convert to char or num simple algorithm )

基于matlab的基本粒子群优化算法，可应用与最优潮流计算等(Matlab-based optimization of the particle swarm algorithm can be applied with optimal power flow calculation)