CPG_V1

Simple two path Rayleigh fading channel

系统仿真了HSDPA中的harq系统，对HARQ系统的吞吐量，重传次数做了分析描述 turbo 码matlab编译码程序，包括map和siso译码算法(Simulation of HSDPA in harq system, HARQ throughput of the system, the number of retransmissions to do the analysis described decoding turbo code matlab procedures, including map and siso decoding algorithm)

grid energy storage battery

encoding and decoding using huffnam

说明：  能实现第四代移动通信系统中的关键技术MIMO-OFDM，是一个两发两收的MIMO系统(To achieve the fourth generation mobile communication system in key technology MIMO-OFDM, is a collection of two rounds of two MIMO systems)

Comparison of performance for 2-PPM and 2-PAM under two pulse shapes, Gaussian Pulse and Hermit Pulse with Three scenarios are considered (5, 20, and50 users).

simulink下对APRX结构的仿真。实现在频域对信号的滤波(structure under APRX simulink simulation. Achieved in the frequency domain filtering of the signal)

小波变换（wavelet transform，WT）是一种新的变换分析方法，它继承和发展了短时傅立叶变换局部化的思想，同时又克服了窗口大小不随频率变化等缺点，能够提供一个随频率改变的“时间-频率”窗口，是进行信号时频分析和处理的理想工具。它的主要特点是通过变换能够充分突出问题某些方面的特征，能对时间（空间）频率的局部化分析，通过伸缩平移运算对信号（函数)逐步进行多尺度细化，最终达到高频处时间细分，低频处频率细分，能自动适应时频信号分析的要求，从而可聚焦到信号的任意细节，解决了Fourier变换的困难问题，成为继Fourier变换以来在科学方法上的重大突破。(wavelet transform)

DVB-T系统，包含外编码，外交织，内编码，内交织，OFDM帧结构等等(DVB- T system, including the coding, interweave, the coding, the interweave, OFDM frame structure and so on)

利用matlab的GUI界面进行锥齿轮的弯曲和接触强度计算(use matlab s GUI to calculate bevel gear strength )