timeanalysis

光学工程很有用的有限元优化问题解，能轻松快速的进行工程类的和光学类的优化处理(Useful in optical engineering finite element solutions of optimization problems can be quickly and easily and optical engineering optimization class)

利用matlab的lpc function 實做出將input source音檔算出其coefficent and gain並由上述資料可以重新合成還原音訊(The lpc function using matlab real audio file to make the input source is calculated by its coefficent and gain reduction above information can be re-synthesized audio)

该程序用扩展的Kalman滤波实现可非线性状态的估计。(With the expansion of the program realization of the Kalman filter may be non-linear state estimation.)

说明：  在数字信号处理，采用滑动平均的方法消除噪声(In digital signal processing, using moving average method to eliminate noise)

通过傅里叶变换的方法计算全息图像某一行的衬比度(fringe contrast calculation)

Matlab LDA降维经典程序 外国人Jonathan Huang写的LDA matlab程序，用于多维特征的降维 (Matlab LDA dimension reduction procedures foreigners Jonathan Huang classic written LDA matlab program for multi-dimensional characteristics of the dimension reduction)

《MATLAB遗传算法工具箱及应用》pdf版，是详细讲解英国设菲尔德大学开发的遗传算法工具箱的教材，含有详细的案例讲解以及程序。("MATLAB genetic algorithm toolbox and application pdf version。It is to explain in detail the British set up the Sheffield University developed genetic algorithm toolbox materials containing detailed case to explain procedures.)

耳蜗实质上相当于一个滤波器组，耳蜗的滤波作用是在对数频率尺度上进行的，在1000HZ下，人耳的感知能力与频率成线性关系；而在1000HZ以上，人耳的感知能力与频率不构成线性关系，而更偏向于对数关系，这就使得人耳对低频信号比高频信号更敏感。Mel频率的提出是为了方便人耳对不同频率语音的感知特性的研究。频率与Mel频率的转换公式为(Cochlear substantially equivalent to a filter set, cochlear filter is used on logarithm frequency scale, under the 1000 hz, the perception of the human ear and a linear relationship with frequency In more than 1000 hz, the perception of the human ear does not constitute a linear relationship with frequency, and prefer to logarithmic relationship, which makes the human ear is sensitive to low frequency signal is better than high frequency signal. Mel frequency is put forward in order to facilitate the ear of the study of speech perception characteristics of different frequency. For frequency and Mel frequency conversion formula )

MATLAB 编程有助于初学者进行学习，了解以及相应的运用(MATLAB programming will help beginners to learn, understand, and use of appropriate)

gold code generation function