MRI_lmmse

最大流问题，一种组合最优化问题，就是要讨论如何充分利用装置的能力，使得运输的流量最大，以取得最好的效果。求最大流的标号算法最早由福特和福克逊于1956年提出，20世纪50年代福特、福克逊建立的“网络流理论”，是网络应用的重要组成成分。(Maximum flow problem, a combinatorial optimization problem, is to discuss how to make full use of the capacity of the device to maximize the flow of transport in order to achieve the best results. The labeling algorithm for maximum flow was first proposed by Ford and Fulkerson in 1956. The network flow theory established by Ford and Fulkerson in 1950s is an important component of network application.)

简单模拟了bpsk的编解码，以及在高斯信道传输的后的译码和误码率的分析。另附功率谱。(Simple simulated bpsk codec, and the transmission of Gaussian channel bit error rate after decoding and analysis. Attached power spectrum.)

本程序用simulink仿真m序列做扩频码时系统的性能(The procedures used m sequence simulink simulation performance of the system when the spreading codes)

给出了用matlab实现LDPC码协作通信的程序，其中LDPC码用PEG算法构造，并给出了相应的文章。(Given LDPC codes using matlab to achieve collaborative communication procedures which LDPC codes constructed with the PEG algorithm, and gives the corresponding article.)

说明：  北航数值分析大作业第一题：矩阵的QR分解求特征向量。代码是我在理学院本科期间写的，所有结果已经过Matlab及Mathematica验证，保证算法正确实现。(Numerical analysis of Beihang great job the first question: QR decomposition of matrix eigenvector. Code is written during my undergraduate logical Institute, all results have been verified through Matlab and Mathematica, to ensure it is correct to achieve.)

说明：  介绍了matlab在电路分析中的应用，有较多的实例(Matlab introduced in the circuit analysis, there are more instances of)

在matlab下，实现太阳高度角、日期计算。(In matlab, the realization of solar altitude angle, the date of calculation.)

使用matlab演奏李玉刚的贵妃醉酒，亲自测试可以演奏，虽然不如卡农那个版本完全，但是音准基本正确(To Li Yugang Drunken Beauty matlab played personally test can play, although not as good as the Canon version completely, but the pitch is basically correct)

wavelet transmission

基于active-set 的SQP算法，用于求解非线性不等约束(SQP algorithm used to find a constrained minimum of a function of several variables based on active-set algorithm, subject to the nonlinear inequalities.)