Research/Patents/US 5831571
US 5831571

RADAR

Assignee

SIEMENS PLESSEY ELECTRONIC SYSTEMS LIMITED A CORP. OF GREAT BRITAIN

Filed

Feb 26, 1992

Granted

Nov 3, 1998

Location

ROMSEY EN GB

Abstract

A method of guiding an object by means of a radar information field, wherein a field is created comprising a beam which has a generally annular cross sectional region defining a central null in the field, controlling the beam so that the null is directed towards a destination or target, and positioning said object in or at a defined position relative to the null, said object including an antenna and receiver means responsive to the signal strength difference between the annular region of the information field and the null in order to guide the object to the destination or target.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

May 26, 1993

Rescinded

Apr 9, 1997

Duration

3 years, 10 months

Inventor

  • 1BRYAN S. RICKETT

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