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fit_maxwell_pdf - Non Linear Least Squares fit of the maxwellian distribution. given the samples of the histogram of the samples, finds the distribution parameter that fits the histogram samples. fits data to the probability of the form: p(r) = sqrt(2/pi)*(a^(-3/2))*(r^2)*exp(-(r^2)/(2*a)) with parameter: a format: result = fit_maxwell_pdf( x,y,W,hAx ) input: y - vector, samples of the histogram to be fitted x - vector, position of the samples of the histogram (i.e. y = f(x,a)) W - matrix or scalar, a square weighting matrix of the size NxN where N = length(y), or 0 to indicate no weighting is needed. hAx - handle of an axis, on which the fitted distribution is plotted if h is given empty, a figure is created. output: result - structure with the fields a - fitted parameter VAR - variance of the estimation type- weighted LS or not weighted LS iter- number of iteration for the solution

MIMO信道模型MIMO信道模型MIMO信道模型MIMO信道模型MIMO信道模型MIMO信道模型MIMO信道模型(MIMO channel model for MIMO channel model MIMO channel model MIMO channel model for MIMO channel model MIMO channel model for MIMO channel model)

前推回代配电网潮流程序源代码，并给出了计算实例(Forward and backward substitution power flow program source code, and calculation examples are given)

关于基音周期的提取，倒谱法的改进，利用预测余量(On the pitch period extraction, improved cepstrum method, the use of margin forecast)

GPS天线模型数据，相减对比程序，将需要的数据进行分析(GPS antenna-model compare)

to caluculate the legendre polynomials

This book is a Introduction to Electrical Power Systems and protection.

频率采样法：使所设计的FIR数字滤波器的频率特性在某些离散频率点上的值准确地等于所需滤波器在这些频率点处的值，在其他频率处的特性则有较好的逼近。 (Frequency sampling method：Make the FIR digital filters designed by the frequency characteristic in some discrete frequency is equal to the value accurately in these frequency required filter in value, the characteristics of the other frequency place there is a better approximation. )

本书主要讲解了MATLAB语言常用算法程序集清晰版，对于初学者用处很大(This book explains the MATLAB language commonly used algorithm for assembly clear version, has proved very useful for beginners)

　20世纪70年代，美国新墨西哥大学计算机科学系主任Cleve Moler为了减轻学生编程的负担，用FORTRAN编写了最早的MATLAB。1984年由Little、Moler、Steve Bangert合作成立了的MathWorks公司正式把MATLAB推向市场。到20世纪90年代，MATLAB已成为国际控制界的标准计算软件。 (70 years of the 20th century, the United States Head of the Department of Computer Science, University of New Mexico Cleve Moler in order to reduce the burden of student programming, the earliest written with FORTRAN MATLAB. 1984 by Little, Moler, Steve Bangert cooperation established in the MathWorks MATLAB to market the company officially. 90 20th century, MATLAB has become the international control of industry standard calculation software.)