Cap09_The-Land-Mobile-Satellite-Channel

QPSK的系统仿真 simulink 的M文件 讲解了许多关于QPSK 仿真的内容 让大家可以更深一步了解matlab这款软件(QPSK system simulation covering m-file which impart something about Qpsk simulation and let us know about matlab more deep)

It is an other signal processor, made in matlab. Enjoy

利用模式理论，对给定几何尺寸以及折射率分布的光纤进行模式求解与绘图，该程序给出LP21模的求解与绘图。(the LP21 mode of the fiber)

model maintain the level of water at the pump station with the reaction of the step effect

The Wind Farm (DFIG detailed model demo of the Distributed Resources application library does not simulatethe demo that is missing. This file is normally d at the simulation start in order to define an initial state vector that starts the model in steady state.

matlab下傅里叶变换的程序例程，是pdf的(under the Fourier transform matlab routine procedure is the pdf)

科学工程计算中方法中一种的，龙格库塔法求解(In the scientific and engineering calculations, the Runge-Kutta Method)

This Matlab Code models a Rayleigh fading channel using a modified Jakes channel model. A modified Jakes model chooses slightly different spacings for the scatterers and scales their waveforms using Walsh–Hadamard sequences to ensure zero cross-correlation. alpha_n = frac{pi(n-0.5)}{2M} and eta_n = frac{pi n}{M}, results in the following model, usually termed the Dent model or the modified Jakes model: R(t,k) = sqrt{frac{2}{M}} sum_{n=1}^{M} A_k(n)left( cos{eta_n} + jsin{eta_n} ight)cos{left(2pi f_d t cos{alpha_n} + heta_{n} ight)}. The weighting functions A_k(n) are the kth Walsh–Hadamard sequence in n. Since these have zero cross-correlation by design, this model results in uncorrelated waveforms. The phases ,! heta_{n} are initialized randomly and have no effect on the correlation properties. Matlab fast Walsh-Hadamard transform function is used to efficiently generate samples using this model.

obtaining the particular position where a maximum or minimum occurs

a function to perform simple split-merge segmentation