1000-0054(2011)09-1234-05

—The minimum variance distortionless response (MVDR) approach is very popular in array processing. It is also employed in spectral estimation where the Fourier matrix is used in the optimization process. First, we give a general form of the MVDR where any unitary matrix can be used to estimate the spectrum. Second and most importantly, we show how the MVDR method can be used to estimate the magnitude squared coherence function, which is very useful in so many applications but so few methods exist to estimate it. Simulations show that our algorithm givesmuchmore reliable results than the one based on the popular Welch’s method.

采用matlab的GUI写的晚会等可用的按座位抽奖的程序，为西安电子科技大学2013届研究生迎新晚会上使用的抽奖程序( Seats by party and other lottery programs available)

Image classification using RBFSVM and Manhattan distance. It detects face and eye. Face detection using Viola jones.

Modulation test for OFDM : This is a set of five (5) codes about COFDM (Coded Orthogonal Frequency Division Multiplexing) and coding schemes such as Convolutional, BCH, Reed Solomon (RS) and Low Density Parity Check (LDPC). The study uses an OFDM signal over an AWGN Channel with white Gaussian noise model, and calculate the Bit Error Rate wich is plotted.

It is a matlab sourcecodes for the calculation of refrective index of AlGaAs alloy. I think it is useful for the guys who need the accurate value of the refrective index. It can be expanded to the other semiconductor alloy if you have the related parameters.

matlab实现的基于模糊逻辑的一个简单小例子，仿真已通过，可供初学者实践。(matlab fuzzy logic-based implementation of a simple small example, simulation has been adopted practice for beginners.)

Ber simulation tutorial - contains matlab codes.(Ber simulation tutorial-contains Matlab codes.)

产生一个正交相位调制信号（QPSK），该信号可供复数解析，调制相位为（0，pi/2,pi,3*pi/2）(have an orthogonal signal phase modulation (QPSK), which is available for complex signal analysis, Phase modulation (0, pi/2, pi, pi* 3/2))

液位和高度的控制，具有很小的误差，操作简单(Level and degree of control, with little error, simple operation)

说明：  输入圆的半径求周长和面积。程序由三个函数组成：主函数进行输入输出和函数调用，perimeter函数求周长，area函数求面积。(Enter the radius of the circle circumference and area requirements. Program consists of three functions: the main input and output functions and function calls, perimeter function evaluation perimeter, area function for the area.)