Compressive wideband microwave radar holography

Scott A. Wilson; Ram M. Narayanan

doi:10.1117/12.2050131

29 May 2014 Compressive wideband microwave radar holography

Scott A. Wilson, Ram M. Narayanan

Proceedings Volume 9077, Radar Sensor Technology XVIII; 907707 (2014) https://doi.org/10.1117/12.2050131
Event: SPIE Defense + Security, 2014, Baltimore, MD, United States

Abstract

Compressive sensing has emerged as a topic of great interest for radar applications requiring large amounts of data storage. Typically, full sets of data are collected at the Nyquist rate only to be compressed at some later point, where information-bearing data are retained and inconsequential data are discarded. However, under sparse conditions, it is possible to collect data at random sampling intervals less than the Nyquist rate and still gather enough meaningful data for accurate signal reconstruction. In this paper, we employ sparse sampling techniques in the recording of digital microwave holograms over a two-dimensional scanning aperture. Using a simple and fast non-linear interpolation scheme prior to image reconstruction, we show that the reconstituted image quality is well-retained with limited perceptual loss.

Citation Download Citation

Scott A. Wilson and Ram M. Narayanan "Compressive wideband microwave radar holography", Proc. SPIE 9077, Radar Sensor Technology XVIII, 907707 (29 May 2014); https://doi.org/10.1117/12.2050131

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