menxian

本论文首先介绍了当前深空通信的编码调制技术的现状与发展，阐述了以往 的深空通信中的编码和调制技术的方案和局限性，提出LDPC码和FQPSK调制的 优越性和发展前景。第二章描绘了LDPC码的奇偶校验矩阵的图形表示、生成方 式和译码方法，并比较二元LDPC码和多元LDPC码的优越性和实现问题。第三 章在介绍FQPSK调制的方案的由来、改进和发展的基础上，对其进行了功率谱分 析，介绍了一些常规的解调方案。(This paper introduces the current situation and development of the technology of deep-space communication code modulation on the coding and modulation techniques in deep space communications program and limitations of the proposed of LDPC codes FQPSK modulation superiority and development prospects. Chapter II depicts a graphical representation of the LDPC code of the parity check matrix generation method and decoding method, and compare the superiority of binary LDPC codes and multiple LDPC code and implementation problems. Chapter origin in the introduction FQPSK modulation program, improvement and development on the basis of its power spectrum analysis, conventional demodulation.)

说明：  双音多频(DTMF)信号的MATLAB仿真，已经通过调试 含源码及课设报告(Matlab simulation of DTMF signal has passed debugging, including source code and course design report)

说明：  读取地震数据的道头字并画出剖面图, 没有读出所有的道头，只读取了几个角为重要的(read headers of seismic data and draw the profile)

very useful robust control codes in matlab.

详细介绍了matlab与文件操作相关的语句用法(Detailed description of the matlab file operations associated with the usage of the phrase)

A dynamic estimation of channel is necessary before the transmission of the signals since the wireless channel is time–varying..we use MMSE method for channel estimation. The MMSE method calculates the following, MMSE channel estimator is designed to minimize the estimation MSE. The MMSE estimate the channel responses.

基于matlab的PSO软件包 PSOt为PSO的工具箱，该工具箱将PSO算法的核心部分封装起来，提供给用户的为算法的可调参数，用户只需要定义好自己需要优化的函数(计算最小值或者最大值)，并设置好函数自变量的取值范围、每步迭代允许的最大变化量(称为最大速度，Max_V)等，即可自行优化。(PSO soft for matlab )

周期图法功率谱估计，希望对大家能有所帮助。(Periodogram Power Spectral Estimation)

说明：  模糊控制 很好用的模糊控制，能出波形，希望对大家有帮助(Good use of fuzzy control fuzzy control, to the wave, we want to help)

matlab2012b的安装方法，单机安装及局域网服务器安装-matlab2012b，license( installation method, installation of stand-alone installation and LAN Server)