pattern

传统的决策树能较好地解决分类问题，但当类的个数增多时，所产生的单一决策树就会变得复杂，同时概括能力降低。 该文采用基于层次分解的方法通过产生多层决策树来处理多类问题。 与传统的单一决策树比较， 基于层次分解的决策树在处理多类问题时有许多的优势。(induction learning,decision tree,id3 ,hiberarchy decomposition)

利用matlab实现数字水印源码。提供了各种攻击的实现。(using Matlab digital watermarking source. Provide a variety of attacks realized.)

Obtain the stress in beam

雷达信号处理中MTI，用FFT实现MTD， 用FIR滤波器实现MTD。 (Radar signal processing MTI, with FFT to achieve MTD.Realize MTD with FIR filter.)

增广最小二乘法参数估计，系统辨识，针对含有输出噪声的SISO模型。(Augmented least squares parameter estimation, system identification, aimed at containing the output noise of the SISO model.)

用MUSIC法实现方向角的定位，从而实现对阵列信号的处理(Direction angle with the MUSIC method to achieve positioning, enabling the array signal processing)

求解系统幅频特性,求解相频特性，求解根轨迹，具有直观的用户界面，功能强大，操作简单。主程序为lab03.m和lab031.m(Solve the system amplitude frequency characteristics, solution phase frequency characteristics, solving root locus, with intuitive user interface, powerful, simple operation. The main program for lab03. M and lab031. M)

Plots 3 dimensional plot of a sinc wave

program which simulate potential method for the use of the navigation system with several cases

Huffman coding uses a specific method for choosing the representation for each symbol, resulting in a prefix code (sometimes called prefix-free codes , that is, the bit string representing some particular symbol is never a prefix of the bit string representing any other symbol). Huffman coding is such a widespread method for creating prefix codes that the term Huffman code is widely used as a synonym for prefix code even when such a code is not produced by Huffman s algorithm.