Accession Number : ADD003588

Title :   Method for Providing Means to Eliminate Ambiguous Polarization Effects on Phase and Amplitude of Radar Backscatter Due to Unknown Target Aspect Angle.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON D C

Personal Author(s) : Goggins,William B , Jr

Report Date : 25 Jan 1977

Pagination or Media Count : 10

Abstract : A radar system is operated in a manner that provides determination of the coincidence of radar signal polarization with the major axis of a target of unknown aspect angle. This information so obtained can be utilized to enhance radar signals or to improve target identification capabilities. One approach comprehends transmitting circularly polarized radar signals and receiving return signals on a linearly polarized receive antenna. By varying the polarized receive antenna over 180 deg range signal maxima and minima are detected that correspond to alignment of the target's major axis with the radar signal E and H field vectors. The method can also be practiced by transmitting linearly polarized radar signals, the polarization of which is also varied over a 180 deg range. (Author)

Descriptors :   *Patents, *Radar signals, *Signal processing, Polarization, Aspect angle, Phase measurement, Amplitude, Backscattering

Subject Categories : Active & Passive Radar Detection & Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE