Sparse Scenario Imaging for Active Radar in the Forward-Looking Direction

Jun Wang, Fenggang Yan, Yinan Zhao, Xiaolin Qiao
2014 Mathematical Problems in Engineering  
The resolution of multiple targets at the same range cell but different angles in the forward-looking direction is of great trouble for active radar. Based on compressive sensing (CS) framework, a sparse scenario imaging approach using joint angle-Doppler representation basis is proposed, which employs multisensor and single-receiver channel hardware architecture. Firstly, the joint angle-Doppler representation basis is formulated using the Doppler dictionary, and then the radar returns during
more » ... ultiple pulse repetition periods are modeled as the measurements with respect to a stationary sparse target scenario via the joint representation basis; in the end, the image of sparse target scenario is recovered using the single-receiver echoes. Numerical experiments demonstrate that the proposed method can provide an image of the spatial sparse scenario at the same range for active radar in the forward-looking direction.
doi:10.1155/2014/653208 fatcat:3wptaoebkvhbxg7in34vjkxloy