fdtd3D_UPML

the phonetic characteristics of BP neural network data classification

卡尔曼滤波器的演示程序 可以运行的 仅仅是演示(Kalman filter demo program can run only a demo)

插值算法，具体使用方向为高斯插值，Kriging插值可以参考(Interpolation algorithm, the specific direction of the Gaussian interpolation, Kriging interpolation can refer to)

说明：  改进欧拉法的matlab程序，并且其中有一个例子(Improved Euler method matlab program, and an example)

说明：  跳频参数估计论文，主要是通过各种时频分析方法进行处理(The hopping parameter estimates thesis, mainly handled by a variety of time-frequency analysis methods)

最小均方濾波器是一類可通過最小化誤差訊號之均方值而修正濾波器係數，以類比所需理想濾波器的自適應濾波器，其中作為修正依據的誤差訊號為理想參考訊號與實際輸出訊號之差。該種濾波器所用之最小均方法只以當前之訊號誤差值為準進行修正，是一種隨機梯度下降法。最小均方法係由斯坦福大學的Bernard Widrow教授及他的首位博士班學生Marcian Hoff於1960年提出。最小均方濾波器屬於常見的自適應濾波器種類之一。(The minimum mean square filter is an adaptive filter that can correct the filter coefficients by minimizing the mean square value of the error signal to analogize the desired ideal filter. The error signal used as the correction reference is the ideal reference signal and the actual output. The difference between the signals. The minimum averaging method used in this kind of filter is only corrected based on the current signal error value, which is a stochastic gradient descent method. The minimum mean method was proposed in 1960 by Professor Bernard Widrow of Stanford University and his first PhD student, Marcian Hoff. The least mean square filter is one of the common types of adaptive filters.)

此为基于二代提升小波的阈值压缩算法源码，其中可以设置小波变换的分解层数，使用的小波名称，及各层阈值设置计算公式中的参数。并将低频系数转化为十六进制，方便在其上进一步压缩，如采用Huffman压缩等，程序思路清楚，附有完整的注释，可以使用多种小波，并且很好得体现了二代小波的思想，对于初学小波者帮助很大。(based on the second generation of this upgrade wavelet compression algorithm threshold source, which can set wavelet transform decomposition level, the use of wavelet name, threshold levels and set the formula for calculating the parameters. And low-frequency coefficients into hexadecimal facilitate its further compression, such as the Huffman compression. procedures ideas clearly, with the integrity of the Notes, you can use a variety of wavelet, and reflected very well in the second generation wavelet thinking, For beginners who wavelet of great help.)

matlab script that detects a contour

遗传优化算法优化权值与阈值，视神经网络训练次数减少(Genetic optimization algorithm to optimize the weights and threshold, optic nerve network fewer training )

Fisher线性判别验证程序，以简单二分类为例说明的(Fisher linear discriminant validation process, a simple classification as an example)