sff-basic

我国数字电视地面国标以及手机电视国标都采用了LDPC编码，本程序是LDPC的Matlab便解码实现，程序中附有说明，结构简洁，是了解LDPC原理和应用的最佳实例。(China Digital Television Terrestrial GB GB, as well as mobile TV using the LDPC codes, this procedure is LDPC decoding of Matlab will be realized, accompanied by a process of structural simplicity, is to understand the principle and application of LDPC best examples.)

matlab在通信原理中的应用，TDM仿真，希望大家能用得上！(matlab in Applied Communication Theory, TDM emulation, hope that we can useful!)

说明：  在人们的生产实践中，经常会遇到如何利用现有资源来安排生产，以取得最大经济 效益的问题。此类问题构成了运筹学的一个重要分支—数学规划，而线性规划(Linear Programming 简记LP)则是数学规划的一个重要分支。自从1947 年G. B. Dantzig 提出 求解线性规划的单纯形方法以来，线性规划在理论上趋向成熟，在实用中日益广泛与深 入。特别是在计算机能处理成千上万个约束条件和决策变量的线性规划问题之后，线性 规划的适用领域更为广泛了，已成为现代管理中经常采用的基本方法之一(In people's production practice, we often encounter how to arrange production with the existing resources so as to obtain the maximum economy Benefit issues. Such problems form an important branch of operations research - mathematical programming, while linear programming (Linear Programming or LP) is an important branch of mathematical programming. Since 1947, G. B. Dantzig proposed Since the simplex method for linear programming, linear programming tends to mature in theory and is more and more widely used in practice In. Especially when the computer can deal with thousands of constraints and decision variables of linear programming problems, linear The application field of planning is more extensive, and has become one of the basic methods used in modern management)

可变分数抽取器设计。用matlab里的sg实现，可转化为bit文件下载到fpga 。(Score extraction design variable. Sg with matlab s realization can be transformed into bit file downloaded to the fpga.)

说明：  在matlab仿真环境下，对直扩通信系统的同步算法及其流程进行说明(Matlab simulation in the environment, on the DS communication system synchronization algorithm and its process description)

运动误差补偿仿真 包含视线运动误差和航线运动误差，可选择单点仿真或者九点仿真 包含带有运动误差的回波产生程序和成像程序(Simulation of motion error compensation Contains the line of sight motion error and routes motion error, you can a single point simulation or emulation nine It contains the generator and echo imaging procedures with motion error)

计算曲面换能器空间各点随时间变化的声场强度，采用的是时间差分法。精度高。(Transducer surface computing space changes over time, each point field intensity, using the time difference. High accuracy.)

一种经典恒虚警阈值算法程序,是MATLABC程序代码(CFAR)

matlab编写的五个小波消噪程序，可供初学者仿真学习．(Matlab prepared by the five wavelet denoising process simulation study for beginners.)

THIS IS THE MATLAB CODE FOR PTS TO REDUCE PAPR