t4

串的一些基本运算，删除一段子串，置换，求s串中从start位置开始长度为len的子串等等(Some of the basic string operations, delete a substring, replacement, seeking s string starting from the start position of the sub-string of length len, etc.)

自己找到的数字调制系统分析与仿真 希望大家喜欢(Find the digital modulation system analysis and simulation)

main executing reference usage: observeWaveletDecompositionBenchmark_N_levels.m The objective is to illustrate wavelet decomposition, and to describe how operations may be done in the wavelet domain before the reconstruction. The demo decouples the wavelet operations (transform, operation in wavelet domain, and reconstruction) from the plotting. A PSNR and MSE describes the possible distortion (however minimal) of the forward and inverse wavelet transform. * Caveat: The image display may be subjected to the selected target image. The objective is to provide a simple framework for the understanding of working with wavelets.

说明：  SeismicLab是关于地震资料处理的matlab程序，可以实现简单的地震资料去噪处理(Seismic lab is a matlab program about seismic data processing, which can realize simple seismic data denoising)

构建CDMA通信系统，包括发送，交织，调制，解调，接收等模块(Construction of CDMA communication systems, including the transmission, interleaving, modulation, demodulation, receiver modules)

说明：  matlab程序模拟微分方程。各种流行的系统显示混沌运动特征。(This toolbox contains the functions which can be used to simulate some of the well-known fractional order chaotic systems, such as: - Chen s system, - Arneodo s system, - Genesio-Tesi s system, - Lorenz s system, - Newton-Leipnik s system, - Rossler s system, - Lotka-Volterra system, - Duffing s system, - Van der Pol s oscillator, - Volta s system, - Lu s system, - Liu s system, - Chua s systems, - Financial system, - 3 cells CNN. The functions numerically compute a solution of the fractional nonlinear differential equations, which describe the chaotic system. Each function returns the state trajectory (attractor) for total simulation time. )

PAPR OFDM clipping and filtering

Analyzing performance of mobile MIMO-OFDM wireleed systems

介绍windows程序运行原理，讲述详细，涉及到windows运行的基本流程，让读者可以总体把握，比较适合初学者阅读使用。(Introduction windows program operating principle, tells in detail, the basic process involves running windows so that the reader can grasp the whole, more suitable for beginners to read to use.)

说明：  用Matlab画出玫瑰，原来程序可以这么浪漫(plot a rose with matlab,romantic program)