power

说明：  基于MATLAB的PSK调制 内含源程序与论文(Based on MATLAB-PSK modulation with papers containing the source)

power_voltmeasure,matlab仿真文件,电力电子、功率电子控制方面很有价值，调试通过(aspects of power_voltmeasure, matlab simulation files, power electronics, power electronics control valuable debugging through)

仿真2PSK数字通信系统。信道中噪声模型为加性高斯白噪声。接收端有自适应滤波器。(Simulate 2PSK communication system. Noise in channel is ideal additive Gaussian white noise. Adaptive filter is designed at receiving terminal.)

在matlab环境下在信道下实现bpsk仿真，有调制程序，解调程序，误码率分析等等。(Code to achieve BPSK simulation)

在一个移动通信系统中，发射信号是一个未调制的音频x(t)=cos(2πft)，其中f=f0+fi。设标称载波为f0=1GHz，并设fi =512Hz。假定移动用户在一个繁忙的高速公路上距离基站l公里处的地方，从开始从每小时60公里的速度开始，其速度（在0.01秒的时间间隔内测量）以1/2的概率随机的增加或减少1/10公里每小时。试仿真移动用户在这2s的时间间隔内所接收到的信号(及其频谱)。接收信号可以表示为： y(t)=a(t)Cos[2π(fo+f1)(t-△t)] 式中 △(t)=d(t)/c 且 a(t)=k/d2(t) 在上面的表达式中d(t)是在t时刻基站与移动用户的距离，c是光速，△(t)是传播延迟，而a(t)是信号在t时刻的衰减，并假设在这2s内a(t)是一个常数。利用复低通等效模型来进行仿真。(In a mobile communication system, the transmitted signal is an unmodulated audio x (t) = cos (2πft), where f = f0+ fi. Let nominal carrier of f0 = 1GHz, and set fi = 512Hz. Assume that mobile users on a busy motorway station l kilometers place, starting the beginning of 60 kilometers per hour, the speed (measured in 0.01 second interval) to increase the probability of a random 1/2 or reducing 1/10 km/h. Simulation test signal which the mobile subscriber in the 2s time intervals of the received (and its spectrum). The received signal can be expressed as: y (t) = a (t) Cos [2π (fo+ f1) (t- △ t)] Where △ (t) = d (t)/c And a (t) = k/d2 (t) In the above expression, d (t) at time t is a base station and a mobile user s distance, c is the speed of light, △ (t) is the propagation delay, and a (t) is the attenuation of the signal at time t, and assuming that 2s within a (t) is a constant. Using complex low-pass equivalent model for emulation.)

经典最大二维熵分割法，已经通过验证 运行效率极高(Classic maximum entropy partition method has been validated high efficiency)

说明：  MATLAB code for simple edge detection algorithms including simple mask, sobel mask, Gaussian derivatives.

说明：  DSP MATLAB 函式庫 for study and research(DSP MATLAB library)

这是在AWGN信道下四相键控调制，以及其性能分析。(This is the AWGN Channel 4 phase shift keying modulation, as well as its performance analysis.)

关于matlab的两篇很有用的文章，学习matlab的必备啊！(on Matlab two very useful article, the essential learning Matlab ah!)