periodogram

matlab code for a function of fsk

AC-DC-AC双pwm逆变器的Matlab/Simulink仿真源程序。包括两个电路：一个是50Hz三相 AC(PWM整流)->DC->50Hz三相AC(PWM逆变),驱动三相对称电阻负载；一个是60Hz 三相AC(全波整流)->DC->50Hz三相AC（PWM逆变），驱动一个永磁同步电动机。（本源码基于王军(xiaohongchen@163.com)上载的double_pwm_inverter.mdl改进而来，适用于matlab7.3.0(R2006)版本）(AC-DC-AC inverter pwm dual Matlab/Simulink simulation source. Includes two circuits: one is the 50Hz three-phase AC (PWM rectifier)-)

matlab标准遗传算法 优化函数为f=-(x-1)^2+4，其中，0<=x<=3(matlab)

convert earth-centered earth-fixed (ECEF) cartesian coordinates to latitude, longitude, and altitude

matlab常见的算法，很有用的，里面有很多的算法，工程人员很有用。(matlab common algorithm, very useful, there are many algorithms, engineers useful.)

天线方向图用于画简单的天线方向图，适合初学者学习使用，(the antenna dir)

matlab时域信号处理算例，包括带通滤波、高通滤波、低通滤波(signals processing in time domain ,including Low pass filter ,high pass filter，Band pass filter)

fault finding in power system analysis

MATLAB希尔伯特Hilbert变换求包络谱 源程序代码(MATLAB Hilbert spectral envelope of the Hilbert transform)

In a series of papers in recent years new structures for coherent M-PSK (M-ary Phase Shift Keying) receivers were suggested. These include structures for carrier phase detectors for the carrier PLL (Phase Lock Loop), carrier PLL lock detectors, symbol timing error detectors, symbol synchronization PLL lock detectors, carrier and symbol PLL loop filters, and SNR (Signal to Noise Ratio) estimators