MUSIC

说明：  本文件是基于高斯正弦波行的宽带脉冲波形设计,保证了相对带宽大,衰减满足3db要求(this document is based on the Gaussian line broadband sinusoidal pulse waveform design, ensuring a relatively large bandwidth. attenuation meet the requirements Z)

结合QPSK调制的直接序列扩频系统的仿真(Combined with QPSK modulation direct-sequence spread-spectrum system simulation)

这是整套的ldpc-ofdm仿真模拟代码，可以运行的，输出的是误码率图像(This is the whole set of ldpc-ofdm simulation code, you can run the output image is the bit error rate)

里面是一些自己总结的opnet的建模步骤，还有就是opnet里面常用英文单词的汉语解释。(Which are summarized opnet own modeling steps, there is the opnet which used English words explained in Chinese.)

说明：  ? 了解3G移动通信网中关键技术CDMA的实现原理 ? 掌握matlab编程，实现CDMA原理仿真 ? 掌握matlab语言对于码分复用技术仿真的功能(Understanding the Implementation Principle of the Key Technologies of CDMA in 3G Mobile Communication Network Master the MATLAB programming and realize the simulation of the principle of CDMA Master the function of MATLAB language in simulation of code division multiplexing technology)

该程序实现了跳时UWB技术的调制与解调，对于UWB系统的设计具有一定参考价值(this program realize TH UWB with modulation and demodulation module.it has significant value for UWB system design.)

modbus library written in c sharp!!!!!

Performance Evaluation of DWT

本源码包参考英国Southampton大学Robert G. Maunder教授2008年的EXIT charts开源demo，给出了通用(分量码多项式可自定义)并行级联Turbo码的EXIT charts的作图源码。同时可完成迭代轨线、BER等值线的绘制等工作。 由于对于码块长较大的情形仿真需要较长时间，源码包也给出了部分分量码多项式的仿真结果，可直接用于绘图。 源码包还给出了最经典的S.Ten Brink介绍EXIT charts基本原理的参考文献，以及本人对通信系统中迭代译码过程分析技术综述的小论文，希望对大家有所帮助。(This source package comes after Professor Robert G. Maunder s open source demo about EXIT charts in 2008 from University Southampton, UK. It is designed for universal (constituent code generation polynomial can be customized) Parallel Concatenated Turbo Code EXIT charts. The iterative trajectories and BER contour drawing is also completed in this package. Since the long block case costs a lot of simulation time, some simulation results are included in the package. We also give the most classical introduction to the basic principles of EXIT charts from S. Ten Brink, as well as a document about analysis technologies for iterative decoding process in communication systems. Hope this will help.)

HLP A+ Modbus 标准通讯协议格式，上位机发送数据格式，正确时变频器返回数据格式(This bit will be set to logic 1 when the receive buffer has been read and contains no new information. If there is new information available in the receive buffer that has not been read, this bit will return to logic 0. RXBMT = 1 when in Master Mode.)