GPS_INS

[matlab] DIP nearest neighbor interpolation and bilinear interploation ([matlab] DIP nearest neighbor interpolation and bilinear interploation)

摘要:正交频分复用(OFDM)是第四代移动通信的核心技术。该文首先简要介绍了OFDM基本原理,重点研究了理想同步情 况下,保护时隙(CP)和不同的信道估计方法在高斯信道和多径瑞利衰落信道下对OFDM系统性能的影响。在给出OFDM系 统模型的基础上,用MATLAB语言实现了整个系统的计算机仿真并给出参考设计程序。最后给出在不同的信道条件下,保 护时隙、信道估计方法对OFDM系统误码率影响的比较曲线,得出了较理想的结论。 (O FDM is the key techno logy of 4G in the field of mobile comm unication.In this article O FDM ba sic p rinc ip le is briefly in troduced.Then,the influence of CP and d iffe rent channe l e stim a tion on the system pe rfo rm ance is emp ha tica lly analyzed respectively in Gauss and R ayle igh fading channe ls in the cond ition of ideal synchronization.B e sides,based on the given system mode l O FDM system is compu te r sim u la ted w ith MA TLAB language and the refe rentia l design p rocedure is given.Fina lly,the B ER cu rves of CP and channe l e stim ation a re given and comp ared.The conclusion is sa tisfac to ry. )

说明：  从地理坐标到笛卡尔直角坐标转换,考虑到不同的椭球投影。(function to calculate the geodetic Earth-fixed coordinates )

基于蒙特卡洛仿真法的OFDM通信的仿真 具有卷积 交织模块(Monte Carlo simulation method based on the OFDM communications with convolutional interleaving module simulation)

这些是matlab 中在地质中应用的程序，供大家参考参考，不错哦(These are the matlab procedures applied in geology, for your information, oh well)

Random WayPoint mobility model in Matlab

ldpc码的经典程序,针对ldpc自适应调制的码率变换(ldpc code classical procedures against ldpc adaptive modulation rate of transformation)

通信原理的作业，利用matlab产生两路模拟语音信号，经过AIDzbl编码、时分复用、dffEgSW调制经过同一个信道单向传输到对应的接收端。仿真了端到端通信的链路质量和丢包率情况，测试完整可用。. (Communication Theory of operations, the use matlab to generate two analog voice signals encoded through AIDzbl , time division multiplexing, dffEgSW modulation over the same one-way transmission channel corresponding to the receiving end. Simulation of the link quality and packet loss rate case end communications, testing complete available. )

最优化方法：修正牛顿法反演粒度分布。是粒度反演算法的核心。(Fraunhofer diffraction of light intensity calculation, according to particle size, wavelength, calculated prior to the distribution of diffraction intensity.)

LZ编码的程序，分为了几个文件，有利于学习。(LZ encoding process, is divided into several files。It s easy to learn)