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用MATLAB程序，实现了在空域下，对图片的亮度值写入秘密信息的程序，很有参考价值(With the MATLAB program, implemented in the airspace, the brightness value of the picture written procedures for confidential information)

harris角点检测，并且可以有效的删除一部分密度较大的点(harris conner detection)

topology opt code 110 line

This MATLAB exercise designs and implements a pitch period detector based on detecting and tracking peaks in the autocorrelation of the LPC error signal during regions of voiced speech. The pitch detection procedure is called the SIFT (Simple Inverse Filtering Tracking) method. The SIFT pitch period detector uses a secondary autocorrelation peak in order to detect and correct pitch period detection errors due to effects such as pitch period doubling and related phenomena.

基于两步加权最小二乘的多站时差辐射源定位算法(Two-stage weighted least squares source location)

说明：  伽辽金无网格法求解一维问题的MATLAB代码，内附2个子程序。(the method of glarkin meshless)

介绍了原型滤波器的设计，并比较了不同混叠因子下滤波器的性能(this code include the design of the prototype filter,which is widely used in the multicarrier communication.we also compare the performance with different coefficient.)

对 matlab simulink 基础做了比较详细的说明(matlab simulink conference)

current in buck cover.

说明：  一维信号的小波分解与重构，适用于脉搏信号及心电信号等。(Wavelet decomposition and reconstruction of one-dimensional signal)