bian-cong-pin-xinhao

生成ldpc码稀疏矩阵的matlab仿真程序，带有消除小环功能(Generate sparse matrix LDPC code of matlab simulation program, with the elimination of the small ring function)

根据有无固定基础设施，无线局域网又可分为BSS (Basic Service Set)和IBSS (Independent Basic Service Set)。我们要研究的ad hoc网络属于后者。假设在一个ad hoc网络中，移动节点的发射功率PTx总是恒定的。要发送数据的移动节点总是先监听信道，测量接收到的信号功率X，其中X= I + N, I为接收到的干扰，N是噪声。移动节点只有在X＜INThre时，才可以发射。式中，INThre为背景噪声门限。 在仿真中，我们规定每个移动节点的发射功率是常数，PTx = 1W；接收节点接收机的灵敏度Smin = -80 dBm；信号质量 min = 2 dB；系统的背景噪声门限INThre = 1.2e-10。 (According to the availability of fixed infrastructure, wireless local area network can be divided into BSS (Basic Service Set) and IBSS (Independent Basic Service Set). We have to study the ad hoc network belong to the latter. Assuming in an ad hoc network, mobile node s transmission power is always constant PTX. To send data to the mobile node always monitor channel, measuring the received signal power X, which X = I+ N, I was received interference, N is the noise. Mobile node only when X <INThre when it is fired. Where, INThre threshold for background noise. In the simulation, we require that each mobile node s transmission power is constant, PTx = 1W receiver node receiver sensitivity Smin =-80 dBm signal quality )

This code implement a interation in cordic pipelline

说明：  语音识别HMM隐马尔可夫全过程的matlab程序，运行测试能出结果，希望对你们有用，实在没点数才把自己压箱底的东西拿出来,呜呜(HMM speech recognition, Hidden Markov whole process of matlab program, run the test to the result, I hope helpful for you, it is only then did their own pressure points things bottom out, whining)

This simulation work belongs to STATCOM model. User may get he basic idea of PWM generation

QPSK system simulation not working

使用matlab实现了克里金插值算法，代码较短，运行时间也较为理想，但是缺少注释(use matlab to realize the Kriging interpolation algorithm ,code is shorter, running time is ideal)

说明：  希尔伯特变换的三种方法，经本人验证，在MATLAB中可以运行(Hilbert transformation of the three methods, by my verification, in MATLAB can run)

Efficient frontier from Yahoo or database data. (Efficient frontier from Yahoo or database data.)

自己写的matlab小程序，用于解方程组。可以参考下(Their own small programs written in matlab for solving equations. Can refer to)