46991080RayleighFadingSimulation

matlab课程设计大作业，内含十道题，是对matlab应用的一个综合(matlab)

通信中应用的16QAM的仿真 在AWGN信道下的仿真 误码率等(Communication 16QAM application of simulation in the AWGN channel bit error rate simulation)

说明：  MATLAB实用程序百例非常的实用，尤其是在图像处理方面的。(MATLAB utility hundred cases, very practical)

本书详细介绍了数学科学计算在matlab中的方法，对初学者有一定的帮助。(This book details the mathematics of scientific computing methods in matlab, there is some help for beginners.)

In this paper, we investigate the timing and carrier frequency offset (CFO) synchronization problem in decode and forward cooperative systems operating over frequency selective channels. A training sequence which consists of one orthogonal frequency-division multiplexing (OFDM) block having a tile structure in the frequency domain is proposed to perform synchronization. Timing offsets are estimated using correlation-type algorithms. By inserting some null subcarriers in the proposed tile structure, we propose a computationally efficient subspace decomposition- based algorithm for CFO estimation. The issue of optimal tile length is studied both theoretically and through simulations. By judiciously designing the tile size of the pilot, the proposed algorithms are shown to have better performance, in terms of synchronization errors and bit error rate, than the time-division multiplexing-based training method and the computationally demanding space-alternating generalized expectation-maximization

说明：  2D的FDTD程序，有关边界的设定，物理参数的设定等，对学习FDTD很有帮助。(2D of the FDTD program, setting the boundaries, the physical parameters of the set and so helpful in learning FDTD.)

基于matlab的var模型应用 youyong(matlab var)

【转】协同过滤代码，用于推荐系统，包括基于项目和基于用户两种情况。实现基于用户和基于项目的协同过滤算法。 实验所用数据为MovieLens – a web-based movies recommender system with 43,000 users & over 3500 movies. 保存在ga.mat文件用，由于ga.test测试集过于庞大，全部用来计算的话耗时庞大，所以每次计算时随机选择部分，具体函数的使用请参照probar.m。我所得到的实验结果保存在results1-results8.mat里面。([Turn] collaborative filtering code for the recommended system, including project-based and user-based two cases. User-based and project-based collaborative filtering algorithm. Experimental data for MovieLens- a web-based movies recommender system with 43,000 users & over 3500 movies. Saved in ga.mat file with Because ga.test test set is too large, all used to calculate the time-consuming massive, so every time The calculated random selection portion, the use of the specific function, please refer to probar.m. I obtained experimental results are saved inside results1-results8.mat.)

Stephen J.Chapman《MATLAB编程（第二版）》英文影印版的中文译本，这本书对初学者很好的入门教材。(Stephen J.Chapman "MATLAB Programming (second edition)," the English version of the Chinese translation of photocopying, this book is a good primer for beginners.)

MATLAB历程的雷达信号处理方针及其应用，好用，建议下载(MATLAB course of the principle of radar signal processing and its applications, easy to use, it is recommended to download)