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dv-hop算法,无线传感器网络定位算法(dv-hop algorithm, wireless sensor network localization algorithm)

DDS产生250-350M正弦波。相位量化处理，按M长度(DDS 250-350M generated sine wave.Phase quantization processing, according to M length)

MATLAB 外部程序使用手册，讲述matlab语言与其他语言联合编程应用。(MATLAB external program to use the manual, to tell matlab language and other languages ​ ​ joint programming applications.)

异步机直接启动最基本的仿真模型，希望对大家有用(Asynchronous machine directly start the basic simulation model, we hope to be useful)

关于cdma的直接序列扩频系统的经典编程，包括发射机，瑞利信道模型，接收机等的程序编写。(On direct sequence spread spectrum cdma classic programming, including the transmitter, Rayleigh channel model, receiver, etc. programming.)

说明：  matlab源码实现记忆多项式模型的功放建模(Memory polynomial model power amplifier )

Check this file for sensor

清华大学信号与系统经典教材 课件 非常好 我喜欢 是学习现代数字信号处理的经典教材(wofw woifew fwiojfkjshnv wf sf wifjs fwfjsl ggew wgjwgr gwogd ld vlsgj sdfjjw)

matlab 中用Bisection方法求解一元多次方程，是一种很好的算法。但收敛速度比较慢，是线性收敛(matlab using Bisection method for solving multiple equations one yuan, is a good algorithm. But convergence is slow, linear convergence)

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.)