一种长时长混合通信信号的分离重建方法  

Separation and Reconstruction Method of Mixed and Long Duration Communication Signals

作　　者：赵伟[1] 沈越泓[2] 王建功[3] 李慧[3] 

机构地区：[1]解放军理工大学通信工程学院研究生2队,江苏南京210007 [2]解放军理工大学通信工程学院 [3]解放军理工大学通信工程学院研究生4队

出　　处：《军事通信技术》2013年第1期62-68,共7页Journal of Military Communications Technology

摘　　要：对于无线通信系统中的长时长混合通信信号,接收机是将其分成多个时间段依次进行接收分离的。但是分离中固有的不确定性会使得相邻时间段分离出的各路信号在序号、相位和幅度上不完全相同,这将导致相邻时间段分离出的各路信号不能正确相连接,合成各路完整的接收信号。文章针对这种信号在进行分段处理时因分离不确定性引起的问题,提出了一种分离重建方法,并通过MATLAB仿真试验验证了该方法的有效性。理论分析和仿真试验表明:与文献[9]中基于估计混合矩阵列向量相关性方法相比,该方法在一定条件下具有更好的性能。In radio communication system, the mixed and long duration communication signals are split in time and separated block by block in the receiver. But the inherent uncertainty of separation causes the problem that the separated signals at adjacent blocks are not completely the same in permutation, amplitude and phase, which results in incorrect connection when the separated signals at adjacent blocks are tied together. To solve this problem, a separation and reconstruction method was proposed. Simulation experiments were designed to prove the method＇s performance, which shows that, compared with the method based on associativity in column vectors of an estimated mixed matrix in [9], the proposed method has better performance.

关 键 词：长时长通信信号 不确定性 分离重建 

分 类 号：TN911.23[电子电信—通信与信息系统]