Research/Patents/US 5610610
US 5610610Tier 1 — UAP Program Assignee

INVERSE SYNTHETIC ARRAY RADAR SYSTEM AND METHOD

Assignee

Hughes Aircraft

Filed as: HUGHES AIRCRAFT COMPANY

Filed

May 18, 1988

Granted

Mar 11, 1997

Location

LOS ANGELES CA US

Abstract

An inverse synthetic array radar (ISAR) system provides for improving the resolution of an ISAR image by providing compensation for non-uniformity in the magnitude of the angular velocity of a rotating target as the target rotates to generate the synthetic-aperture-angle, and enables use of a larger synthetic-aperture angle, without compromising ISAR image quality with respect to smear. The preferred embodiment records sampled data signals to generate a collected-data matrix indexed in each of two dimensions on the basis of uniform increments of time, and performs data processing to produce a translated data matrix indexed in a dimension on the basis of uniform increments of synthetic-aperture angle. Further processing of the translated data matrix produces data in a buffer for controlling a display device for the ISAR image.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Mar 17, 1989

Rescinded

Jul 3, 1996

Duration

7 years, 3 months

Inventor

  • 1RALPH E. HUDSON

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Back to patent indexSource: USPTO 35 USC §181 secrecy order records