System and method for increasing resistance to target...

Details System and method for increasing resistance to target... System and method for increasing resistance to target...

2005-03-22

2005-03-22

Gregory, Bernarr E. (Department: 3662)

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

Synthetic aperture radar

C342S159000, C356S004010

Reexamination Certificate

active

06870499

ABSTRACT:
A synthetic aperture radar (SAR) system includes a transmitter capable of transmitting a pair of signals that each have a predetermined frequency in the optical band of the electromagnetic spectrum. The predetermined frequency can be selected, for example, to provide a level of resistance to at least one of movement of the target, target vibration and optical path length variations, and can further be selected based upon a predefined range and azimuth resolution. The SAR system also includes a receiver capable of receiving at least a portion of the pair of signals that has been reflected off of a target. In this regard, the receiver is capable of processing the reflected portion of the pair of signals based upon a difference frequency between the transmitted pair of signals.

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