电子设计工程
電子設計工程
전자설계공정
ELECTRONIC DESIGN ENGINEERING
2012年
5期
90-92
,共3页
DOA%Music%TOPELITZ%强相关信号
DOA%Music%TOPELITZ%彊相關信號
DOA%Music%TOPELITZ%강상관신호
DOA%Music%TOPELITZ%coherent signals
波达方向估计（DOA估计）是智能天线中实现目标精确定位的关键算法。文中针对DOA估计中相干信号源的问题，提出了一种能有效解相关的关于TOPETIZE矩阵的DOA估计算法。该算法利用了阵列接收数据互相关矢量的内在关系，对噪声子空间进行处理，实现了相干源的完全解相干。该算法不牺牲阵元有效数目，同时能分辨低信噪比信号和强相关信号。仿真结果表明了该算法的有效性。
波達方嚮估計（DOA估計）是智能天線中實現目標精確定位的關鍵算法。文中針對DOA估計中相榦信號源的問題，提齣瞭一種能有效解相關的關于TOPETIZE矩陣的DOA估計算法。該算法利用瞭陣列接收數據互相關矢量的內在關繫，對譟聲子空間進行處理，實現瞭相榦源的完全解相榦。該算法不犧牲陣元有效數目，同時能分辨低信譟比信號和彊相關信號。倣真結果錶明瞭該算法的有效性。
파체방향고계（DOA고계）시지능천선중실현목표정학정위적관건산법。문중침대DOA고계중상간신호원적문제，제출료일충능유효해상관적관우TOPETIZE구진적DOA고계산법。해산법이용료진렬접수수거호상관시량적내재관계，대조성자공간진행처리，실현료상간원적완전해상간。해산법불희생진원유효수목，동시능분변저신조비신호화강상관신호。방진결과표명료해산법적유효성。
DOA algorithm is the key algorithm in Smart Antenna to achieve the goal positioned accurately. The paper put forward a new DOA method based on TOPEL1TZ matrix, which can decorrelate strong correlation signal effectively.The algorithm use the internal relation of array receiving data to deal with noise subspace, then to complete the DOA estimation for coherent signals. The algorithm will not have aperture loss, and can distinguish between low SNR signal and strong correlation signal Results are presented to illustrate the efficiency and accuracy of this method.
