identifier

说明：  用牛顿下山法求解方程：下山因子在计算过程中可以变动，一般选择下山因子时从1开始，逐次将减半进行试算，直到能使下降条件成立为止。若当计算到某步时取不到满足要求的值（或值小到无法容忍），这时称“下山失败”，需要另取初值重新算起。(Descent method with Newton' s equation: down factor in the calculation process can change, usually selected from the 1 start down factor, will be halved for successive spreadsheet until the can down the conditions established. If when calculating the time to take a step not meet the requirements of the value (or values ??too small to tolerate), then the &quot down failed&quot , you need an alternative initial re-counting.)

watermarking using lsb replacement

说明：  一个多输入多输出（mimo)系统的仿真matlab程序，希望对大家有所帮助(a multi-input multi-output (MIMO) systems Matlab simulation procedures, we hope to help)

SIFT代码，包括detector & descriptor.Matlab版本，内有详细的说明文档。值得一看(SIFT code, including detector )

说明：  图像处理里面的 椒盐分布 matlab里面图像处理很常用的 (Salt-pepper distribution)

说明：  跨 平 台 时 间 统 计 定 义跨平台时间统计(The definition of cross-platform cross-platform time to time statistics Statistics)

一种时频域联合捕捉主动声纳信号的方法.介绍了一种可应用于被动声纳的时频域联合捕捉主动声纳信号的方法及其工作流程。仿真相同噪声环境下使用该方法的发现距离与主动声纳探测距离,仿真结果表明使用该方法的发现距离远超过主动声纳探测距离,使用该方法可实现对目标的远程发现。(A time-frequency domain joint capture of active sonar signals. Introduced passive sonar, which can be applied when the frequency domain joint to capture active sonar signal its workflow. The discovery of the method used in the simulation of the same noise environment distance active sonar detection range, simulation results show that using the method found distance than active sonar detection range, the use of this method can be found remote target.)

emd分解全过程，直观明了手把手的教你运用希尔伯特黄变换。(emd decomposition progress )

Speech Enhancement Using Spectral Subtraction A Spectral Subtraction implementation for speech enhancement using MATLAB 6.5

压缩感知BP算法（basis pursuit algorithm）(basis pursuit algorithm)