Accession Number : ADD000272

Title :   Platform Motion Compensating for Airborne Radars.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Applebaum,Sidney P

Report Date : 23 Apr 1974

Pagination or Media Count : 8

Abstract : The patent relates to platform motion of an airborne radar system of the moving target indicator type compensated for by an adaptive displaced phase center antenna arrangement. The signals detected by the two receiving beams are combined to form sum and difference signals. Thereafter, the sum signals have subtracted therefrom delayed sum, difference and delay difference signals which are weighted by coefficients determined by cross-correlating these signals and the output signal obtained from the above subtraction. The system thus combines the DPCA and the side lobe cancellation concept to eliminate signals received from stationary targets. The receiving beams may be squinted to compensate for antenna rotation.

Descriptors :   *Moving target indicators, *Patents, Airborne, Radar, Motion, Compensation

Subject Categories : Active & Passive Radar Detection & Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE