Publication

Synthetic aperture radar (SAR) is one of the remote sensing technologies used for Earth observation missions. Phased arrays combined with adaptive beamforming can be used in SAR to improve system performance [1]. In commonly used adaptive beamformers, such as the minimum variance distortionless response (MVDR) beamformer, the angles of
arrival from desired signals and interferers are provided with discrete values and the beamforming weights are computed to
keep desired signals and to suppress interferers at the respective angles [2]. However, interferers may not be located
at known discrete angles and may, instead, be distributed over a range of angles. Then traditional beamformers work less
well as some interferers are suppressed while others are not. Here, a beamforming technique is presented that incorporates
the probability density of the distribution of interfering signals.

Researcher/Author: Jiahao Wang (NUS), Koen Mouthaan (NUS).

2022 International Symposium on Antennas and Propagation (ISAP) 31 Oct – 3 Nov.  https://ieeexplore.ieee.org/document/9998656