SIFT

利用DCT变换对灰度图像进行压缩，求出压缩比；对比不同压缩比的图像。(DCT transform using grayscale image compression, the compression ratio obtained compare different compression ratio of the image.)

an exam in image processing in french 2013

Lamb波的频散曲线，利用matlab编制了导波曲线，为导波检测模态选取提供了技术工作(Frequency dispersion curve of Lamb wave The guided wave curve is compiled by MATLAB, which provides technical work for the selection of guided wave detection mode.)

通过计算机MATLAB仿真分析和研究了维纳滤波器的阶数、信号的噪声方差、随机信号的采样点数、经过维纳滤波的均方误差之间的关系(MATLAB simulation by computer analysis and research of Wiener filter order, the signal of the noise variance, random signal sampling points, after Wiener filter mean square error of the relationship between)

basically boost converter

The second edition. The classic spectral analysis athorized by Alan V.Oppenheim. the necessary tool books for communication majors.(The second edition. The classic spectral analysis athorized by Alan V. Oppenheim. The necessary tool books for communication majors.)

说明：  This code is related to the course Digital Communications. It makes a simple communication system which uses AWGN and QPSK

俯仰模态下的七自由度动力学模型的位移响应，(Pitching seven degrees of freedom under the modal displacement response of the dynamic model)

自己编写的旋转算法，没有用imrotate函数(havne t use the function imrotate of matlab)

多进制PSK调制的matlab实现程序，能过实现M进制的psk调制(Ary PSK modulation matlab implementation program that can achieve over the psk M-ary modulation)