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Json parsing and fragments. uses for tests and make tutorials

震动信号的预警和过零率计算，需要有自己的原始震动信号(seismic signal processing zero_-pass rate)

说明：  用于机动目标跟踪的白噪声模型算法，本代码中需要调用模型函数，可以自己编写简单的模型函数即可。(For maneuvering target tracking algorithm for white-noise model, the code needs to call the model function, can I have written a simple model can function.)

这是一篇基于matlab的电力系统仿真组件matpower的使用手册。主要介绍了matpower软件的功能以及它的具体操作。(This is matpower user s manuala, power system components of matlab-based simulation. It Introduces matpower software functionality as well as its specific operation.)

说明：  BBO进化算法-基于生物地理学新型进化算法(BBO evolutionary algorithm- a new evolutionary algorithm based on biogeography)

蜂窝网TDOA定位算法的一种Fang算法，我自己测试过的。(Cellular TDOA algorithm of a Fang algorithm, I tested.)

微分方程求解 (Differential equation solution )

使用电压矢量控制策略，可以并网运行。调节电网电压，跟踪性能好，是MATLAB 2010的版本，大家可以参考(The use of voltage vector control strategy of grid connected operation, can. Grid voltage regulation, good tracking performance, is the 2010 versions of MATLAB, you can refer to)

This function obtains a unitary matrix Q such that: d=diag(Q *diag(lmd)*Q). In other words, it gives a way to generate a matrix with given eigenvalues and diagonal elements. By Daniel Perez Palomar (last revision: May 10, 2004). Feel free to distribute this file as it is (without including any modifications).(This function obtains a unitary matrix Q such that: d=diag(Q*diag(lmd)*Q). In other words, it gives a way to generate a matrix with given eigenvalues and diagonal elements. By Daniel Perez Palomar (last revision: May 10, 2004). Feel free to distribute this file as it is (without including any modifications).)

说明：  RS的编码就是计算信息码符多项式，除以校验码生成多项式之后的余数；rs编码的基本实现，包括add,mul函数等；(RS coding is to calculate the information symbol code polynomial, divided by the check code generator polynomial after the remainder rs basically coding, including add, mul function, etc. )