Passive millimeter-wave holography enabled by optical up-conversion

Janusz Murakowski; Garrett J. Schneider; Dennis W. Prather

doi:10.1117/12.909424

24 February 2012 Passive millimeter-wave holography enabled by optical up-conversion

Janusz Murakowski, Garrett J. Schneider, Dennis W. Prather

Proceedings Volume 8259, RF and Millimeter-Wave Photonics II; 825903 (2012) https://doi.org/10.1117/12.909424
Event: SPIE OPTO, 2012, San Francisco, California, United States

Abstract

We present a method for three-dimensional scene reconstruction in the millimeter-wave part of the electromagnetic spectrum. The millimeter waves captured by sparsely distributed antennas are up-converted to optical domain using electro-optic phase modulators. The modulation is a coherent process in that it preserves the phase information carried by the millimeter waves and encodes it in the phase of the optical carrier. In the optical domain, the signal is then transmitted using optical fibers to an optical cross-correlation engine where all pair-wise cross-correlation terms are measured. The 3D millimeter-wave representation of the scene is then reconstructed digitally from those crosscorrelation terms.

Citation Download Citation

Janusz Murakowski, Garrett J. Schneider, and Dennis W. Prather "Passive millimeter-wave holography enabled by optical up-conversion", Proc. SPIE 8259, RF and Millimeter-Wave Photonics II, 825903 (24 February 2012); https://doi.org/10.1117/12.909424

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