Publications [#280154] of David J. Brady

Papers Published

  1. Mrozack, A; Heimbeck, M; Marks, DL; Richard, J; Everitt, HO; Brady, DJ, Adaptive millimeter-wave synthetic aperture imaging for compressive sampling of sparse scenes., Optics Express, vol. 22 no. 11 (June, 2014), pp. 13515-13530
    (last updated on 2023/06/01)

    Abstract:
    We apply adaptive sensing techniques to the problem of locating sparse metallic scatterers using high-resolution, frequency modulated continuous wave W-band RADAR. Using a single detector, a frequency stepped source, and a lateral translation stage, inverse synthetic aperture RADAR reconstruction techniques are used to search for one or two wire scatterers within a specified range, while an adaptive algorithm determined successive sampling locations. The two-dimensional location of each scatterer is thereby identified with sub-wavelength accuracy in as few as 1/4 the number of lateral steps required for a simple raster scan. The implications of applying this approach to more complex scattering geometries are explored in light of the various assumptions made.