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A NOVEL DIRECTION OF ARRIVAL ESTIMATOR 被引量:1
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作者 ShaoChao luguangyue BaoZheng 《Journal of Electronics(China)》 2004年第2期97-103,共7页
A Direction Of Arrival(DOA) estimator based on the signal separation principle is introduced, and one of representative multidimensional estimators is established by introducing Matrix Operator projection signal steer... A Direction Of Arrival(DOA) estimator based on the signal separation principle is introduced, and one of representative multidimensional estimators is established by introducing Matrix Operator projection signal steering Vector Excision(MOVE) operation. Thanks to Alternating Separation (AS) technique, the multidimensional problem is transformed into a series of one-dimensional optimal ones. Furthermore, an equivalent simplified implementation of the AS is obtained. Finally the definiteness and uniqueness of the estimator are analyzed. 展开更多
关键词 Matrix Operator projection signal steering Vector Excision(MOVE) estimator Alternating Separation(AS) algorithm Alternating projection algorithm
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Some properties of the alternating separation (AS), alternating projection (AP) and ASAP algorithm 被引量:1
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作者 SHAOChao luguangyue BAOZheng 《Science in China(Series F)》 2004年第4期409-420,共12页
This paper analyzes some properties of the alternating separation (AS) and alternating projection (AP) algorithm. The analysis shows that AS converges to the optimal point steadily but slowly, while AP converges to th... This paper analyzes some properties of the alternating separation (AS) and alternating projection (AP) algorithm. The analysis shows that AS converges to the optimal point steadily but slowly, while AP converges to the optimal point quickly but is prone to immersing into the local extreme of the maximum likelihood (ML) criterion. To avoid their disadvantages and make use of their advantages, ASAP, which is the combination of AS and AP, is proposed. Simulation results show that the ASAP algorithm has the ability of estimating the direction of arrival more accurately and converging to optimal point more quickly. 展开更多
关键词 alternating separation MOVE estimator alternating projection ASAP algorithm signal separa-tion.
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