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TWO-DIMENSIONAL DIRECTION-OF-ARRIVAL ESTIMATION METHOD FOR COPRIME PLANAR ARRAY BASED ON STRUCTURED COARRAY TENSOR PROCESSING
TWO-DIMENSIONAL DIRECTION-OF-ARRIVAL ESTIMATION METHOD FOR COPRIME PLANAR ARRAY BASED ON STRUCTURED COARRAY TENSOR PROCESSING
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机译：基于结构勾勒张量加工的基于结构化辅助加工的二维飞行阵列的二维估计方法
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摘要
A two-dimensional direction-of-arrival estimation method for a coprime planar array based on structured coarray tensor processing, the method includes: deploying a coprime planar array; modeling a tensor of the received signals; deriving the second-order equivalent signals of an augmented virtual array based on cross-correlation tensor transformation; deploying a three-dimensional coarray tensor of the virtual array; deploying a five-dimensional coarray tensor based on a coarray tensor dimension extension strategy; forming a structured coarray tensor including three-dimensional spatial information; and achieving two-dimensional direction-of-arrival estimation through CANDECOMP/PARACFAC decomposition. The present disclosure constructs a processing framework of a structured coarray tensor based on statistical analysis of coprime planar array tensor signals, to achieve multi-source two-dimensional direction-of-arrival estimation in the underdetermined case on the basis of ensuring the performance such as resolution and estimation accuracy, and can be used for multi-target positioning.
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