PPM_TH_NEW2013.1.17

matlab的ASM算法工具箱,很好用的(ASM matlab toolbox)

COPERM (Compaction by Optimal PERMutation) is a tool for transform-domain energy compaction

基于simulink的卷积码编码性能仿真，给出性能曲线。(Convolution code coding performance based on simulink simulation, the performance curve is given.)

说明：  字典树的基本功能是用来查询某个单词（前缀）在所有单词中出现次数的一种数据结构，它的插入和查询复杂度都为O(len),Len为单词（前缀）长度，但是它的空间复杂度却非常高，如果字符集是26个字母，那每个节点的度就有26个，典型的以空间换时间结构。(The basic function of the dictionary tree data structure is used to query a number of times a word (prefix) appears in all the words, which insertion and query complexity are O (len), Len is a word (prefix) length, but its space complexity is very high, if the character set is 26 letters, and that the degree of each node will have 26, the typical structure of space for time.)

ls ber performance OF OFDM CHANNEL WHICH shows why ls in ofdm is better than other.

基于matlab写的一个道路障碍物识别，可检测道路障碍物，利用数字图像处理相关知识，如平滑，边缘检测等(Based on MATLAB write a road obstacle identification, can detect road obstacles, the use of digital image processing related knowledge, such as smooth, edge detection, etc.)

简单实现了基于项目的协同过滤代码，MATLAB实现，需要解压(Simple implementation of project-based collaborative filtering code)

此函数是根据柯西分布概率密度函数和累积分布函数的概念而编写的matlab程序，并附有一个测试程序。(This function is based on the Cauchy distribution probability density function and cumulative distribution function of the concept and write matlab program, together with a test program.)

rake接收，walsh码直接扩频，三种分集合并方式(rake receiver, walsh code direct spread spectrum, three kinds of collection and methods)

使用matlab程序编写的雷达目标航迹跟踪小例程，主函数是进行雷达数据处理，通过uIymJd分析，主成分提取，iKcuFNO降噪等处理后得到的运动轨迹曲线。 (Matlab programming using radar target tracking small track routines, the main function is radar data processing, through uIymJd analysis, principal component extraction trajectory after iKcuFNO noise reduction processing curves obtained. )