Research/Patents/US 4665401
US 4665401

MILLIMETER WAVE LENGTH GUIDANCE SYSTEM

Assignee

SPERRY CORPORATION, A CORP. OF DE

Filed

Oct 10, 1980

Granted

May 12, 1987

Location

ST. PETERSBURG FL US

Abstract

A high frequency target seeking device, using a stabilized reflector antenna, performs range search and tracking functions and target angle search and tracking functions. A technique is provided for target range discrimination using several narrow band i.f. filters, also thereby improving signal-to-clutter ratio and signal-to-receiver noise ratio. Target search is accomplished with simultaneous range and antenna azimuth scanning, with the range bins and the antenna beam swept across the target. A multiplexer selects the range bin having signals indicative of the target. Target range tracking is accomplished by the multiplexer additionally automatically selecting range bins adjacent to the target's range bin and comparing their output signals. Antenna stabilization is accomplished utilizing signals from vehicle pitch, roll, and yaw rate sensors, and antenna elevation and azimuth rate and angle sensors. These signals are processed in the antenna control circuit according to predetermined relationships to provide the desired antenna stabilization.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

May 7, 1982

Rescinded

Jun 9, 1986

Duration

4 years, 1 month

Inventor

  • 1JOHN T. GARRARD

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