zuisuxiajiangfa

《通信系统仿真原理与无线应用》系统地介绍通信系统的设计、分析和仿真方法，还提供了大量极具参考价值的仿真实例。《通信系统仿真原理与无线应用》的全部仿真程序都是采用MATLAB编写的。这不仅方便读者理解仿真的实现过程，还允许读者修改或使用这些代码段来进行自己的仿真开发。章后提供了大量的参考文献和经过精心设计的各类练习题，方便教学。此为中文翻译本。(Principles of Communication Systems Simulation with Wireless Applications is a hands-on, example-rich guide to simulating wireless communications systems. The first book to present complete MATLAB simulation models for predicting the impact of design changes, it treats every aspect of simulation: sampling, signal and system representations, filters, noise, Monte Carlo simulation, postprocessing, nonlinear and time-varying systems, waveform and discrete channels, co-channel interference, and more. It includes four detailed case studies.)

Simple two path Rayleigh fading channel

说明：  文件组合合并. 该程序用于将两个文件（可以是txt或xls文件）进行组合合并，例如假设A.txt文件中含有‘00’和‘01’两行，B.txt文件中含有‘aa’和‘ bb’两行,则合并后的文件AB.txt文件中含有‘00aa’、‘ 00bb’、‘01aa’和‘ 01bb’四行。(Combination of the merger document. The program for the two files (can be a txt or xls file) in the combined portfolio, such as the assumption A.txt document 00 and 01 contains two lines, B.txt documents containing aa and bb two lines, then after the merger documents AB.txt document containing 00aa, 00bb, 01aa and 01bb quatrain.)

OFDM is one of the best physical-layer candidates for cognitive radio (CR) systems, but rectangular pulse shaping gives rise to large spectrum sidelobes and interferes with the licensed user on the adjacent band. In this paper, an approach is derived based on the signal continuity to measure the spectral decay rate of the shaping pulse for OFDM.

图像处理，图像小波变换，svd变换, svd trasnform(Image processing, image wavelet transform, svd transform)

802.11a, 802.11b与802.11g的throughput计算程序，只需按照程序提示即可算出不同协议下throughput的理论值。(A computing program for the throughput of 802.11a, 802.11b as well as 802.11g. You can get the throughput by typing in parameters as the guidance on the screen.)

iir滤波器对有噪语音滤波,在matalb上实现(IIR filter noisy speech filtering, on matalb)

以一个简单的三相系统单线图为例，利用高斯赛德尔法计算线路潮流分布及线路损耗(Three-phase system with a simple single line diagram, for example, method using high Sisaideer distribution and line loss trend lines)

A ContextWrapper that allows you to modify the theme from what is in the wrapped context.

利用matlab gui 成绩查询系统，实现不同文件下的成绩查询(Query system using matlab gui performance and achieve results under different file query)