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(1) 在某些无线信道中，多普勒频移会引起无线信道输出信号的混叠。请描述产生混叠的各种原因； (2) 无线信道中的多普勒谱有一种经典谱(classic spectrum)，请解释产生这种谱形状的机理； (3) 请用Simulink工具编写代码(S-Function方式)，产生一单径瑞利信道，其多普勒谱为经典谱，其中移动速率为120km/h。并请回答：证明自己用计算机产生的经典谱是正确的可能方法。 ((1) in certain wireless channel, the Doppler frequency shift will be caused by wireless channel output signal aliasing. Please describe the resulting aliasing of a variety of reasons (2) wireless channel Doppler spectrum there is a classical spectrum (classic spectrum), please explain such a spectral shape of the mechanism (3) Please use Simulink tools for writing code ( S-Function mode), resulting in a single Path Rayleigh channel, the Doppler spectrum for the classical spectrum, including mobile rate of 120km/h. And please answer: prove that they used computer-generated classical spectrum is correct possible ways.)

说明：  在matlab中运用cv模型来进行图像的分割处理，供大家参考！(Cv in the model to use matlab for image segmentation processing, for your reference!)

说明：  带约束算子的粒子群算法，用于matlab环境，对于搞研究的教师有很大帮助(Operator Constrained Particle Swarm Optimization for the matlab environment, engage in research for teachers are very helpful.)

ac voltage controller

人脸识别中的光照处理方法，使用混沌与分形分析的例程，实现了图像的灰度化并进一步用于视频监视控。( Face Recognition light treatment method, Use Chaos and fractal analysis routines, Achieve a grayscale image and further control for video surveillance.)

我一直用的matlab数学手册，word版本的。图文并茂，浅显易懂，可以当做送给师弟的礼物(I have been using matlab mathematics handbook, word version of the. Illustrated, easy to understand, you can give as a gift The Young)

利用matlab读取libsvm的工具包，实现数据的自动分类。压缩包里有训练文件及测试文件。(Read libsvm using matlab toolkit, automatic classification of data. Compression bag has training documents and test files.)

鲁棒自适应波束形成技术，一般采用的加性高斯白噪声，此文采用混合高斯噪声模型，具有很好的代表性，是一个很好的外文文献(An adaptive spatial diversity receiver for non-Gaussian interference and noise)

数字滤波的例子，巴特沃斯与切比雪夫的横向和纵向对比，及阶数分析(Digital filter example, Butterworth and Chebyshev comparison of horizontal and vertical, and the order of)

Gepp algorithm. Developed By dr Kucinski from Warsaw Univeristy of technology.