Research/Patents/US 4746922
US 4746922

METHOD OF AND DEVICE FOR REMOVING RANGE AMBIGUITY IN A PULSE-DOPPLER RADAR AND RADAR INCLUDING SUCH A DEVICE

Assignee

THOMSON-CSF

Filed

May 6, 1982

Granted

May 24, 1988

Location

PARIS FR

Abstract

This invention relates to a method of and a device for removing range ambiguity in a pulse Doppler radar and to a radar including such a device especially for missile guidance. On tracking operation at a high pulse repetition frequency the method consists in switching the repetition frequency fR (k) for each time interval Δt, over a new value fR (k+1) obtained in a circuit from the measured ambiguous range y(k) and from the ambiguity number n(k), as estimated in a circuit from radar information supplied by the radar, in order to remove eclipsing, to maintain the ambiguity number constant and to estimate the range with a growing accuracy in the course of the tracking operation.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Nov 1, 1982

Rescinded

Apr 15, 1987

Duration

4 years, 5 months

Inventor

  • 1MICHEL PRENAT

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