Fisher

说明：  本文在DCT噪声信号模型研究的基础上,提出了一种新的音频水印嵌入位置选择策略和一个应用该策略的自适应音频水印算法. 通过定义DCT系数的噪声敏感度,建立了水印嵌入位置和嵌入水印后的音频信号的听觉感知性之间的关系,根据音频水印的不可听性的要求选择最优的嵌入位置,然后调节水印强度来满足鲁棒性的要求,从而最大程度地保持音频水 印的不可听性和鲁棒性,为解决音频水印嵌入过程中不可听性和鲁棒性之间的矛盾提供了一种策略.(Though m any w orks in the literature agree that w aterm ark should be em bedded in the middle2fre2 quency coefficients or percep tually significant components, how to determ ine the position em bedded has no universal definition. A new em bedding strategy and an algorithm app lying the strategy are p roposed for audio w aterm arking in DCT dom ain based on research of DCT noise m odal. B y defining a noise sensitivity vector, a m ath relationship betw een the w aterm ark em beddable position and the audible quality of the audio file w ith w aterm ark is set up.)

说明：  結合webcam 進行人臉辨識並有GUI方便可正確執行(Combined with webcam for face recognition and can facilitate the correct implementation of GUI)

this file contains all of Model predictive control programs in Matlab

The cross-entropy (CE) method attributed to Reuven Rubinstein is a general Monte Carlo approach to combinatorial and continuous multi-extremal optimization and importance sampling. The method originated from the field of rare event simulation, where very small probabilities need to be accurately estimated, for example in network reliability analysis, queueing models, or performance analysis of telecommunication systems. The CE method can be applied to static and noisy combinatorial optimization problems such as the traveling salesman problem, the quadratic assignment problem, DNA sequence alignment, the max-cut problem and the buffer allocation problem, as well as continuous global optimization problems with many local extrema.

利用MATLAB实现了二元光学设计中的GS算法以及达曼光栅的设计。GS算法是用于光束整形的重要算法，达曼光栅是常见的均匀分束二元光学器件。(Implemented using MATLAB binary optical design of the GS algorithm and Dammann grating design. GS algorithm is an important algorithm for beam shaping, Dammann grating is a common uniform beam of binary optics.)

直流双闭环调速系统，是用神经网络作为控制器的(DC double-loop speed control systems, neural networks are used as a controller)

pca matlab pca matlab

matlab的基本用法,对初学者有用,是必备的基础知识.(Matlab the basic usage, useful for beginners, is an essential knowledge base.)

说明：  Mann Kendall检验 MATLAB(Mann Kendall test MATLAB)

i upload a matlab code which can calculate density of atmosphere and temperature in altitude of over 100 km