佳木斯大学学报(自然科学版)
佳木斯大學學報(自然科學版)
가목사대학학보(자연과학판)
JOURNAL OF JIAMUSI UNIVERSITY (NATURAL SCIENCE EDITION)
2014年
3期
352-356
,共5页
MIMO系统%波形设计%互相关峰抑制%匹配滤波
MIMO繫統%波形設計%互相關峰抑製%匹配濾波
MIMO계통%파형설계%호상관봉억제%필배려파
MIMO system%waveform design%suppression%match filtering
在MIMO( Multiple Input Multiple Output )系统中,为了减小滑动匹配滤波过程中各通道之间相互耦合干扰,需要增大各通道间的载频间隔,因此会占用较大的系统带宽。为了减小载频间隔,我们提出了LFM-类Frank复合波形,并且推导了它的匹配滤波输出。仿真结果表明,与LFM及LFM-Frank波形相比,LFM-类Frank复合波形可以在减小载频间隔的同时获得良好的匹配滤波输出,减少系统占用的带宽,提高频谱资源利用率。
在MIMO( Multiple Input Multiple Output )繫統中,為瞭減小滑動匹配濾波過程中各通道之間相互耦閤榦擾,需要增大各通道間的載頻間隔,因此會佔用較大的繫統帶寬。為瞭減小載頻間隔,我們提齣瞭LFM-類Frank複閤波形,併且推導瞭它的匹配濾波輸齣。倣真結果錶明,與LFM及LFM-Frank波形相比,LFM-類Frank複閤波形可以在減小載頻間隔的同時穫得良好的匹配濾波輸齣,減少繫統佔用的帶寬,提高頻譜資源利用率。
재MIMO( Multiple Input Multiple Output )계통중,위료감소활동필배려파과정중각통도지간상호우합간우,수요증대각통도간적재빈간격,인차회점용교대적계통대관。위료감소재빈간격,아문제출료LFM-류Frank복합파형,병차추도료타적필배려파수출。방진결과표명,여LFM급LFM-Frank파형상비,LFM-류Frank복합파형가이재감소재빈간격적동시획득량호적필배려파수출,감소계통점용적대관,제고빈보자원이용솔。
In MIMO (Multiple Input Multiple Output) system, a large frequency space is conventionally required to reduce the interference of different channels .This method needs relatively wide frequency band that cannot be met in current busy air .Focus on this problem , a Frank-like code was introduced and applied to phase modulation of LFM , gathering LFM -Frank-like waveform .Then its matched filter output is derived . The simulation reveals that compared with LFM waveform and LFM -Frank waveform, well-preforming matched filter output can be obtained with relatively small frequency interval by this method .