Multiscale M decision tree

本文针对并行干扰抵消检测器的不足之处，提出了改进的并行干扰抵消检测算法——基于多项式展开的并行干扰抵消多用户检测算法。该算法将多项式展开检测器作为并行干扰抵消检测器第一级的数据估计值，以提高检测可靠性。通过仿真实验，首先验证了多项式展开检测器的性能。然后比较改进算法与传统检测器的性能，验证改进算法的系统性能得到明显改善；并与并行干扰抵消检测器、解相关检测器和MMSE检测器相比较，验 证得到该改进算法的性能也有不同程度的改善。 (this paper discusses the principle and performance of the conventional detector and the parallel interference cancellation(PIC)detector separately.Since the conventional detector take MAI only as the background noise without considering the existence of the other users,the existence of MAI has a significant impact on the performance of CDMA systems.Each stage of PIC detector utilizes the data estimates of the initial or previous stage,produces a new set of MAI estimates,and then subtracts out all of the MAI for each user in parallel.Through Monte Carlo simulation in different scenarios,the results illustrate the influence of MAI in conventional CDMA ystems.Theexperimental results show PIC detector can effectively eliminate MAI andimprove the system BER. )

this code is simulation of transmitter constellation mapper for wimax( ieee 802.16 standard) for MIMO-OFDM systems

说明：  利用MATLAB编写的直流电动机机械特性测试(MATLAB prepared using DC motor mechanical properties testing)

这是一个Matlab实现的图像Sparcy变换的程序，有助于了解多尺度变换。(This is a Matlab implementation of the image Sparcy transformation process, help to understand multi-scale transformation.)

有关蚁群算法的44篇优秀论文，包括蚁群算法、量子蚁群算法、蚁群算法与粒子群算法的混合算法等。(44 excellent papers about ant colony algorithm, ant colony algorithm, quantum ant colony algorithm, ant colony algorithm and the mixed algorithm of particle swarm optimization (pso) algorithm.)

cdma信号处理的matlab仿真，包括信号的编码和调制等流程-cdma signal processing matlab simulation, including signal coding and modulation process.

MATLAB Longren m files

采用matlab来产生神经逆模块，可以对电机线性化解耦。(Using matlab to generate neural inverse module, can be decoupled linear motor.)

基于Logstic回归分析，建立人口预测模型，对人口数量进行预测(Based Logstic regression analysis, population forecasting model to predict population)

A good survvy in the field of segment and other direction.How to choose a better method to improve the effect.