nihe-matlab-

说明：  电离层射线追踪模型：计算射线在电离层中的传播路径(Ionospheric ray tracing model: calculating ray paths in the ionosphere)

一个模拟雷达杂波的源代码,对开发雷达模拟方面有借鉴作用。(A simulated radar clutter source code, the development of radar simulation has reference.)

基于matlab环境编译的创建人脸数据库，特征提取，人脸识别源码程序，运行时识别率较高。( based on MATLAB environment， creates face database, Feature extraction ，face recognition program,having a high recognition rate)

Software-defined radios (SDRs) have been around for more than a decade. The first complete Global Positioning System (GPS) implementation was described by Dennis Akos in 1997. Since then several research groups have presented their contributions.We therefore find it timely to publish an up-to-date text on the subject and at the same time include Galileo, the forthcoming European satellitebased navigation system. Both GPS and Galileo belong to the category of Global Navigation Satellite Systems (GNSS).

matlab仿真电机直接转矩控制程序，有兴趣可以研究下(matlab simulation motor direct torque control procedures, are interested in can be studied under)

循环冗余码的生成和验证:数字通信中的编码分为信源编码和信道编码两大类。为了提高数字通信的可靠性采取的编码称为信道编码，又称抗干扰编码。数字通信中为了尽可能地提高通信的可靠性，需要采用信道编码技术，对可能或已经出现的差错进行控制，CRC码就是其中的一种编码技术。本实验就是编写RCR编码，可以模拟发送信息，噪声加入，检测验证，信息重发的过程!(Cyclic redundancy code generation and validation: digital communication in the coding is divided into source coding and channel coding two broad categories. In order to improve the reliability of digital communications to the code known as channel coding, also known as anti-interference codes. Digital communication as much as possible in order to improve the reliability of communication need to use channel coding techniques, which may or may control the errors that have emerged, CRC code is one of a kind of coding techniques. RCR in this experiment is to write code that can simulate send a message, noise adding, testing verification, information, process re-issued!)

eige value problems in math

PN码同步仿真实验 伪随机序列 m序列的扩频仿真，里面有详细的参数设置，模块搭建(PN code synchronization simulation pseudo-random sequence of m-sequence spread spectrum simulation, which has detailed parameter settings, the module structures)

说明：  无线传感器网络中采用虚拟力算法进行节点部署时，节点优化过程的matlab算法，产生结果有直观的图形，并且可以根据不同需要进行参数更改。代码导入后可以直接运行(When virtual force algorithm is used to deploy nodes in wireless sensor networks, the matlab algorithm of node optimization process generates intuitive graphics and can change parameters according to different needs. Code can run directly after importing)

积分计算中运用辛普森系列公式求函数的数值积分。(How to use Simpson series formula expression functions caltulating numerical intergration.)