gairispro

该文件是前推回代法程序，只要是解决潮流计算，可以更有效达到预期的效果，希望可以给广大朋友起到一定的帮助。(The document is the forward backward substitution method procedures, so long as to solve the power flow calculation, can be more 有效 desired for Xiao Guo, hope to play some of Ji majority of friends to help.)

matlad code for corgnitive radio

Edge detection result should be enhanced using linear method like Median filter to remove the garbage around the pupil to gain clear pupil to determine perfect centre. Get the centre of the pupil by counting the number of black pixels (zero value) of each column and row. Then get each row and column that has the maximum number of these black pixels. Then determine the center by simple calculation according to the image coordinate to set it correct on the image, consequently we can determine the radius of the pupil. Thus we can find the pupillary boundary (inner). A similar procedure is extended by using a coarse scale to locate the outer boundary (limbus) which can be apparent by using the mid-point algorithms of circle and ellipse.

认知无线电频谱感知中，用能量检测算法实验频谱感知(Cognitive radio spectrum sensing, energy detection algorithm experimental spectrum sensing)

弱信号检测中，LFM信号经过匹配滤波器的应用(Weak signal detection of LFM signal in the application of matched filter )

说明：  三相三绕组变压器及线路故障仿真模型，单相接地故障，两相接地故障，三相故障。(Three phase three winding transformer and line fault simulation model, single-phase ground fault, two-phase ground fault, three-phase fault.)

matlab m file for induction motor

说明：  系统诊断，对系统诊断的编程，真的是对系统诊断的各种语言编程(System Diagnostics)

OFDM的Matlab仿真，加入了加性白高斯噪声，模拟了整个通信系统。(OFDM Matlab simulation)

说明：  双闭环控制系统的MATLAB仿真及其说明。很不错的模块。(SPEED & POSITION PID MATLAB)