通信技术
通信技術
통신기술
COMMUNICATIONS TECHNOLOGY
2013年
4期
68-70
,共3页
周期平稳信号%循环相关%盲波束形成%循环自适应波束形成算法
週期平穩信號%循環相關%盲波束形成%循環自適應波束形成算法
주기평은신호%순배상관%맹파속형성%순배자괄응파속형성산법
cyclostationary signal%cyclic correlation%blind adaptive beaming%CAB algorithm
因为不需信号个数和导向向量等任何参考信息,基于周期平稳信号的盲波束形成算法在信号处理领域得到非常广泛的应用,然而这类方法是建立在循环频率准确已知基础上的,在实际应用中往往不是如此,循环频率的估计误差将导致算法性能变差,为了改进这点不足,在传统的循环自适应波束形成(CAB)算法的基础上,提出了一种改进的 CAB 盲波束形成算法,经理论分析和计算机仿真,证明了该算法是有效的.
因為不需信號箇數和導嚮嚮量等任何參攷信息,基于週期平穩信號的盲波束形成算法在信號處理領域得到非常廣汎的應用,然而這類方法是建立在循環頻率準確已知基礎上的,在實際應用中往往不是如此,循環頻率的估計誤差將導緻算法性能變差,為瞭改進這點不足,在傳統的循環自適應波束形成(CAB)算法的基礎上,提齣瞭一種改進的 CAB 盲波束形成算法,經理論分析和計算機倣真,證明瞭該算法是有效的.
인위불수신호개수화도향향량등임하삼고신식,기우주기평은신호적맹파속형성산법재신호처리영역득도비상엄범적응용,연이저류방법시건립재순배빈솔준학이지기출상적,재실제응용중왕왕불시여차,순배빈솔적고계오차장도치산법성능변차,위료개진저점불족,재전통적순배자괄응파속형성(CAB)산법적기출상,제출료일충개진적 CAB 맹파속형성산법,경이론분석화계산궤방진,증명료해산법시유효적.
@@@@Due to the fact that there is no need of reference signal, the blind adaptive beamforming algorithm based on cyclostationariy signals receives wide application in signal processing. However these methods are mostly based on the assumption that the cycle frequency of the desired signal is precisely known, but this may not be true in practice. This paper proposes an improved robust algorithm based on the conventional CAB algorithm to combat the mismatch in the cycle frequency. Theoretical analysis and computer simulation indicate the effectiveness and robustness of the proposed algorithm.
