Matlab-compute

关于微软出的几道思考题目，很有价值.值得一看。(About Microsoft thought out with a few topics of great value)

说明：  提供图形标记的用户界面，按照用户要求改变标记类型。(Provide graphical user interface tags, in accordance with the user to change the tag type.)

并用S函数编制相间距离保护和接地距离保护算法程序,构建相应的保护模块,实现了三段式距离保护。仿真结果表明,所建立的三段式距离保护模型能够正确反映在保护区内的不同类型的短路故障并发出动作信号,使断路器跳闸实现输电线路的保护功能。 (A distance protection simulation model of transmission line was established by using Simulink and SimPowerSystem toolbox inMatlab. S-function was used to programe the distance protection of phase faults and earth faults and the relevantprotectionmodelswere created to build distance protection.The simulation results show that the three-stage distance protectionmodel can respond to allkinds of faultswithin protection zones correctly and send correct signal to the breaker of the line. )

matlab编写的用于计算一维和二维高斯积分的程序，示例为5点高斯积分。(written in matlab to calculate one-dimensional and two-dimensional Gaussian integral program, the sample for the 5-point Gaussian integration.)

capon算法，用于波束形成，应与工程或者研究都可以(capon algorithm for beamforming, and engineering or research should be)

二维粒子群算法 matlab仿真程序 FUNCTION PSO (Two-dimensional particle swarm algorithm Matlab simulation program FUNCTION the PSO)

comparison between different buck circuits

Line Matrix is line impedance matrix. load_power Matrix is P+jQ matrix of the loads. source matrix is the complex value of the harmonic sources and they considered as a harmonic current source for each harmonic frequency.

基于matlab的DTMF数字拨号音合成，通过的简单的时域连接，用于进一步分析合成效果。DTMF2是分析部分，用于显示时域波形，频谱图和语谱图。(Based on the synthesis matlab DTMF digit dialing tone, and connected by a simple time domain, for further analysis synthesis results. DTMF2 the analysis section, time-domain waveform, spectrum and spectrogram displays the)

用信号发生器产生的信号，用屏幕录像专家录的声音，用频谱分析仪打开做时域频域分析时可以很好的检测出来(Signal with a signal generator, with the voice recording screen video experts, open to do with the spectrum analyzer frequency domain analysis of time-domain can be detected well)