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2023-11-13
Optimizing Detection in MIMO OFDM Radar: Methods for Eliminating Distance-Angle Coupling in Beamforming
By
Progress In Electromagnetics Research M, Vol. 121, 39-47, 2023
Abstract
This study investigates beamforming and optimization in Multiple-Input-Multiple-Output Orthogonal-Frequency-Division-Multiplexing (MIMO OFDM) radar systems. The objective of this research is to mitigate the range-angle coupling effect in MIMO OFDM radar systems by adopting range compensation and distance-angle decoupling methods, which is to ensure that the signal processing during radar waveform formation does not impact the aforementioned coupling effect. In distance compensation, the CVX toolbox is used to minimize peak sidelobe after distance compensation is performed in the angle dimension. A mathematical model is established, and an optimal set of transmission frequencies is achieved through the use of the Alternating-Direction-Method-of-Multipliers (ADMM) algorithm in the context of distance-angle decoupling. Both methods effectively eliminate distance-angle coupling and enhance detection and identification capabilities of MIMO OFDM radar systems.
Citation
Doudou Huang, Yurong Wu, Mingliang Shen, Longshan Xu, and Jun Tang, "Optimizing Detection in MIMO OFDM Radar: Methods for Eliminating Distance-Angle Coupling in Beamforming," Progress In Electromagnetics Research M, Vol. 121, 39-47, 2023.
doi:10.2528/PIERM23080103
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