rect

此代码是基于DCT的数字水印MATLAB编程，包括水印的置乱和反置乱，嵌入以及提取水印四个部分(This code is based on digital watermark DCT MATLAB programming, including the watermark scrambling scrambling and anti-, four-part watermark embedding and extraction)

说明：  能够很好的解决牛顿插值问题，对于构建差商表的程序给出了解释和说明！！！(Newton interpolation can be a good solution to the problem, divided difference table for building the program and instructions are given to explain! ! !)

the second format for the inverter

用fircls设计FIR带通滤波器，希望对大家有用。。(design a FIR filter with fircls.)

time-invariant degradation models and stationary signals and noise, the classical Fourier domain Wiener filter, which can be implemented in O(N logN) time, gives the minimum mean-square-error estimate of the original undistorted signal. For time-varying degradations and nonstationary processes, however, the optimal linear estimate requires O(N2) time for implementation. We consider filtering in fractional Fourier domains, which enables significant reduction of the error compared with ordinary Fourier domain filtering for certain types of degradation and noise (especially of chirped nature), while requiring only O(N logN) implementation time. Thus, improved performance is achieved at no additional cost. Expressions for the optimal filter functions in fractional domains are derived, and several illustrative examples are given in which significant reduction of the error (by a factor of 50) is obtained.

matlab2010b的破解密码，支持联网安装和菲联网安装，非常好用，按照安装提示输入即可(matlab2010b crack passwords, network installation and support of the Philippine networking installation, very easy to use, you can follow the installation prompts for)

SBOGA 用顺序选择遗传算法求解一维无约束优化问题 (SBOGA order to select genetic algorithm for solving one-dimensional unconstrained optimization problems)

改进防碰撞扩展ALOHA的matlab仿真算法(Improved extended ALOHA anti-collision algorithm matlab simulation)

说明：  基于优化算法的bp神经网络，用于解决分类问题，可以给大家提供两种编程思路，亲测有效。(BP neural network based on optimization algorithm, used to solve classification problems, can provide you with two programming ideas)

线谱增强器，用于单频信号检测的线谱增强。(Line spectrum enhancer for the single-frequency signal detection to enhance the line spectrum.)