Research/Patents/US 5422646
US 5422646Tier 3 — General Defense

HIGH FREQUENCY MTI RADAR

Assignee

US Government

Filed as: UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF THE NAVY THE

Filed

Feb 24, 1983

Granted

Jun 6, 1995

Location

FT. WASHINGTON MD US

Abstract

An MTI radar based on a comparison of the Doppler shifts of the original signal and a phase-reversed signal using pulse compression wherein the received signal is phase detected for in-phase and quadrature components relative to the IF. A Doppler-corrected pulse compressor produces a magnitude signal for the Doppler shift of the received signal from the sequence of in-phase and quadrature components. Another Doppler-corrected pulse compressor produces a magnitude signal for the Doppler shift of the received signal from the conjugates of the sequence of in-phase and quadrature components. The magnitude signal of the same Doppler shift of the two compressors are compared and the difference is the output of the MTI.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Aug 25, 1983

Rescinded

Feb 22, 1994

Duration

10 years, 6 months

Inventor

  • 1BERNARD L. LEWIS

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