基于多目标检测系统的盲多用户检测算法的改进  

Improvement of blind multi-target detection algorithm based on multi-user detection system

作　　者：郎建华[1] 姚金杰[1] 韩焱[1] 

机构地区：[1]中北大学信息探测与处理技术研究所,太原030051

出　　处：《电子测试》2010年第5期20-22,39,共4页Electronic Test

摘　　要：针对多目标检测系统中自适应盲多用户恒模算法存在多个局部收敛点,且依赖于初始向量和收敛步长参数选择的缺点,提出了折中小数据量与收敛步长所需窗口间的矛盾,使用扩展部分数据的方法,提高小数据量的多用户检测性能。仿真结果表明,该改进算法提高了恒模算法的窗口利用率且收敛精度高于等同数据长度的窗的恒模算法,能够对突发的小数据量信号进行检测。For adaptive blind multi-user constant modulus algorithm used in multi-target detection system,there are the shortcomings of multiple local convergence point of convergence and the dependent of the initial vector and the convergence step size parameter selection.In this article,the method of data extension which is to address a small amount of data and the convergence step size of the window of the contradictions is used to increases the amount of data of small multi-user detection performance.Simulation results show that the improved algorithm to improve utilization of the window,and convergence precision is higher than the same data length of the window constant modulus algorithm.It can detect a small amount of data burst signals.

关 键 词：码分多址 恒模算法 目标检测 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置]