Research/Patents/US 4972194
US 4972194

METHOD AND DEVICE FOR COMPENSATING FOR THE SPEED OF CLUTTER IN A COHERENT DOPPLER RADAR WITH VARIABLE BLIND SPEED

Assignee

THOMSON-CSF

Filed

Oct 3, 1988

Granted

Nov 20, 1990

Location

PARIS FR

Abstract

In a doppler radar, in order to compensate for the speed of moving clutter, one first establishes during a burst of order (i) the phase variation φri from one period to the next and which is due to clutter in a given range cell. Then, this phase variation φri is memorized and is used during the course of each of the periods of repetition of the next burst to modify the phase of the signal received from the clutter from the same range cell in a maner as to displace its Doppler frequency towards the zero frequencies band, and band which corresponds to the rejection zone of the fixed echoes eliminating filter.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Mar 10, 1989

Rescinded

Jul 31, 1989

Duration

4 months

Inventor

  • 1BRUNO CARRARA

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