Ahmad, FauziaFrazer, Gordon J.Kassam, Saleem AAmin, Moeness G.2023-05-222023-05-222003-04-062004-11-11https://repository.upenn.edu/handle/20.500.14332/33594A coarray-based synthetic aperture beamformer using stepped-frequency signal synthesis and post-data acquisition processing is presented for wideband imaging of near-field scenes. The proposed beamformer formulation and implementation finds key applications in through-the-wall microwave imaging and landmine detection problems. While coarray techniques offer significant reduction in array elements for a given angular resolution, stepped-frequency realization of wideband systems simplifies implementation and offers flexibility in beamforming. Proof of concept is provided using real data collected in an anechoic chamber.Presentation