Multi-spot inverse synthetic aperture radar imaging

Details Multi-spot inverse synthetic aperture radar imaging Multi-spot inverse synthetic aperture radar imaging

2007-11-09

2009-10-06

Gregory, Bernarr E (Department: 3662)

Communications: directive radio wave systems and devices (e.g.,

Synthetic aperture radar

C342S02500R, C342S02500R, C342S118000, C342S128000, C342S130000, C342S131000, C342S132000, C342S175000, C342S192000, C342S195000, C342S196000

Reexamination Certificate

active

07598900

ABSTRACT:
Providing multi-spot inverse synthetic aperture radar (ISAR) imagery is disclosed. Embodiments of techniques in accordance with the present disclosure may advantageously improve multiple target discrimination, detection, identification, and tracking using ISAR imaging. In an embodiment, an inverse synthetic aperture radar (ISAR) method for producing multiple ISAR images from a single waveform includes transmitting a chirp signal into a dwell surveyed by the antenna beamwidth. Multiple dechirp reference signals may be generated to demodulate return signals from the dwell at multiple selected intervals within a pulse repetition interval (PRI) to create demodulated signals.

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