Accession Number : ADD001458

Title :   Method and Means for Providing Optimum Signal-to-Clutter Ratio Antenna Operation in an AMTI Radar.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON D C

Personal Author(s) : Goggens,William B

Report Date : 20 Aug 1975

Pagination or Media Count : 30

Abstract : The patent application relates to the target-to-clutter ratio of return signals in an AMTI radar system maximized by adjusting the phase and amplitude driving coefficients of each antenna element. A matrix of complex numbers is developed as a function of aircraft velocity, radar system operating frequency, radar system doppler filter response frequency, radar look angle, and antenna scattering matrix values. The phase and amplitude driving coefficients of each antenna element are derived from a corresponding complex number matrix. In an alternative embodiment the receive antenna beam is formed in the system processing by combining digital representations of the received signals for each element. The receiving coefficients for the transmit antenna are formed in a beam forming matrix and the digitized return signal are multiplied by appropriate complex matrix numbers in a digital processor.

Descriptors :   *Moving target indicators, *Signal processing, *Radar antennas, Patents, Radar clutter, Reduction, Antenna arrays, Digital systems, Doppler systems, Beam forming

Subject Categories : Active & Passive Radar Detection & Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE