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Proceedings Paper

Fly Eye radar: detection through high scattered media
Author(s): Pavlo Molchanov; Ashok Gorwara
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Paper Abstract

Longer radio frequency waves better penetrating through high scattered media than millimeter waves, but imaging resolution limited by diffraction at longer wavelength. Same time frequency and amplitudes of diffracted waves (frequency domain measurement) provides information of object. Phase shift of diffracted waves (phase front in time domain) consists information about shape of object and can be applied for reconstruction of object shape or even image by recording of multi-frequency digital hologram. Spectrum signature or refracted waves allows identify the object content. Application of monopulse method with overlap closely spaced antenna patterns provides high accuracy measurement of amplitude, phase, and direction to signal source. Digitizing of received signals separately in each antenna relative to processor time provides phase/frequency independence. Fly eye non-scanning multi-frequency radar system provides simultaneous continuous observation of multiple targets and wide possibilities for stepped frequency, simultaneous frequency, chaotic frequency sweeping waveform (CFS), polarization modulation for reliable object detection. Proposed c-band fly eye radar demonstrated human detection through 40 cm concrete brick wall with human and wall material spectrum signatures and can be applied for through wall human detection, landmines, improvised explosive devices detection, underground or camouflaged object imaging.

Paper Details

Date Published: 1 May 2017
PDF: 15 pages
Proc. SPIE 10188, Radar Sensor Technology XXI, 101880W (1 May 2017); doi: 10.1117/12.2261849
Show Author Affiliations
Pavlo Molchanov, Planar Monolithics Industries, Inc. (United States)
Ashok Gorwara, Planar Monolithics Industries, Inc. (United States)

Published in SPIE Proceedings Vol. 10188:
Radar Sensor Technology XXI
Kenneth I. Ranney; Armin Doerry, Editor(s)

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