Accession Number : ADD002692

Title :   Dual Base Line Interferometer Antenna.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Afendykiw, Marko ; Boyle, John M ; Hendrix, Charles E

Report Date : 09 Mar 1976

Pagination or Media Count : 7

Abstract : The patent describes a radar system for determining the position of a target using a radio frequency source of opportunity. The system uses an interferometer antenna and cross-correlation techniques to measure the time delay in receiving a reflected signal from the target as compared to receiving a direct signal from the signal source. Thereby, the distance from the RF source via the target to the antenna is determined. Additionally, the system uses a plurality of interferometer antennas and cross-correlation techniques to measure the relative phase difference between the signals received by the antennas. Thereby the angle of arrival of the reflected signals from the target is determined. Combining the range and angular information locates the target.

Descriptors :   *RADAR, *PATENTS, *RADAR ANTENNAS, PASSIVE SYSTEMS, INTERFEROMETERS, CROSS CORRELATION, RADAR TRACKING, AIRCRAFT, SIGNAL PROCESSING, PHASE MEASUREMENT, CORRELATORS

Subject Categories : Active & Passive Radar Detection & Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE