Closed-form 2-D angle estimation with rectangular arrays in element space or beamspace via unitary ESPRIT

被引:426
作者
Zoltowski, MD
Haardt, M
Mathews, CP
机构
[1] TECH UNIV MUNICH,INST NETWORK THEORY & CIRCUIT DESIGN,W-8000 MUNICH,GERMANY
[2] UNIV W FLORIDA,DEPT ELECT ENGN,PENSACOLA,FL 32514
基金
美国国家科学基金会;
关键词
D O I
10.1109/78.485927
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
UCA-ESPRIT is a recently developed closed-form algorithm for use in conjunction with a uniform circular array (UCA) that provides automatically paired source azimuth and elevation angle estimates. 2-D unitary ESPRIT is presented as an algorithm providing the same capabilities for a uniform rectangular array (URA). In the final stage of the algorithm, the real and imaginary parts of the ith eigenvalue of a matrix are one-to-one related to the respective direction cosines of the ith source relative to the two major array axes. 2-D unitary ESPRIT offers a number of advantages over other recently proposed ESPRIT based closed-form 2-D angle estimation techniques. First, except for the final eigenvalue decomposition of dimension equal to the number of sources, it is efficiently formulated in terms of real-valued computation throughout. Second, it is amenable to efficient beamspace implementations that will. be presented. Third, it is applicable to array configurations that do not exhibit identical subarrays, e.g., two orthogonal linear arrays. Finally, 2-D unitary ESPRIT easily handles sources having one member of the spatial frequency coordinate pair in common. Simulation results are presented verifying the efficacy of the method.
引用
收藏
页码:316 / 328
页数:13
相关论文
共 21 条
[1]  
BIENVENU G, 1984, P 1984 IEEE INT C AC
[2]   SPATIAL-SPECTRUM ESTIMATION IN A LOCATION SECTOR [J].
BUCKLEY, KM ;
XU, XL .
IEEE TRANSACTIONS ON ACOUSTICS SPEECH AND SIGNAL PROCESSING, 1990, 38 (11) :1842-1852
[3]   2-DIMENSIONAL MODAL-ANALYSIS BASED ON MAXIMUM-LIKELIHOOD [J].
CLARK, MO ;
SCHARF, LL .
IEEE TRANSACTIONS ON SIGNAL PROCESSING, 1994, 42 (06) :1443-1452
[4]   UNITARY ESPRIT - HOW TO OBTAIN INCREASED ESTIMATION ACCURACY WITH A REDUCED COMPUTATIONAL BURDEN [J].
HAARDT, M ;
NOSSEK, JA .
IEEE TRANSACTIONS ON SIGNAL PROCESSING, 1995, 43 (05) :1232-1242
[5]  
HAARDT M, 1994, TUMLNSTR943 TU MUN I
[6]   A UNITARY TRANSFORMATION METHOD FOR ANGLE-OF-ARRIVAL ESTIMATION [J].
HUARNG, KC ;
YEH, CC .
IEEE TRANSACTIONS ON SIGNAL PROCESSING, 1991, 39 (04) :975-977
[7]   RESOLUTION THRESHOLD OF BEAMSPACE MUSIC FOR 2 CLOSELY SPACED EMITTERS [J].
LEE, HB ;
WENGROVITZ, MS .
IEEE TRANSACTIONS ON ACOUSTICS SPEECH AND SIGNAL PROCESSING, 1990, 38 (09) :1545-1559
[8]   EFFICIENT DIRECTION-FINDING METHODS EMPLOYING FORWARD-BACKWARD AVERAGING [J].
LINEBARGER, DA ;
DEGROAT, RD ;
DOWLING, EM .
IEEE TRANSACTIONS ON SIGNAL PROCESSING, 1994, 42 (08) :2136-2145
[9]   EIGENSTRUCTURE TECHNIQUES FOR 2-D ANGLE ESTIMATION WITH UNIFORM CIRCULAR ARRAYS [J].
MATHEWS, CP ;
ZOLTOWSKI, MD .
IEEE TRANSACTIONS ON SIGNAL PROCESSING, 1994, 42 (09) :2395-2407
[10]  
MATHEWS CP, 1995, 29 AS IEEE C SIGN SY