zouyong

This package for prtools

matlab实用程序小合集第2部分，都是一些完成特定功能的小程序，很适合新手朋友(matlab utility small collection part 2, are some small programs to accomplish a specific function, it is suitable for novice friend)

优化算法，寻找全局最优解，放入matlab预设目录直接可以使用(optimization algorithm)

说明：  LDPC 预编码，用于构造Raptor码(LDPC Precodes, Used to construct Raptor codes )

LDPC Coding with PSK modulation in an AWGN channel Description LDPC Coding with PSK modulation in an AWGN channel Most of the functions are built in matlab functions found in the comm. toolbox. These can also be easily configurable in the code to meet your requirements. In the given code, set the SNR, codeRate, modulation order (psk) and Number of frames to be simulated. Please feel free to contact me and let me know your comments.

说明：  本程序是暂态稳定分析程序，3机9节点模型，对其在pt时刻7号节点发生三相短路故障，并在ct时刻将故障切除进行仿真，最后绘出2号和1号发电机的功角差与时间的关系曲线。发电机模型采用三阶模型，忽略阻尼，电枢电阻取为零；励磁系统仅有量测和放大环节，忽略反馈和电压调节器；负荷采用恒定阻抗负荷。(This program is a transient stability analysis program, three machine nine node model, which has three-phase short circuit fault on node 7 at Pt time, and cut off the fault at CT time for simulation, and finally draw the relationship curve between power angle difference and time of generator 2 and 1. The generator model adopts the third-order model, neglecting the damping and taking the armature resistance as zero; the excitation system only has the measurement and amplification links, neglecting the feedback and voltage regulator; the load adopts the constant impedance load.)

说明：  扑克识别代码，能识别扑克的数字和黑红梅方等颜色。(Poker identification code, to identify the number of poker and black color Hongmei Fang.)

对函数进行采样，经过FFT变换后，画出频谱图，估计出频率。(Sampling of the function, after the FFT transform, the spectrum drawn to estimate the frequency.)

multiscale log filter - finds maximum response of log filter in multiple scales and orientation, really fast(multiscale log filter- finds maximum response of log filter in multiple scales and orientation, really fast)

说明：  二阶循环统计量盲均衡算法，上传供交流，希望大家提供宝贵的意见(second cycle Statistics blind equalization algorithm, uploads for the exchange, we hope to provide valuable advice)