Accession Number : ADD015998

Title :   Method and Apparatus of Generating Sum or Difference Signals Corresponding to an Apparent Beam in a Monopulse Radar System.

Descriptive Note : Patent, Filed 29 May 92, patented 31 Aug 93,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Howard, Dean D

Report Date : 31 Aug 1993

Pagination or Media Count : 16

Abstract : The invention relates to an apparatus and method for generating target range, azimuth angle, or elevation angle output signals corresponding to an apparent beam in a multiple-feed monopulse radar system. The multiple-feed monopulse radar system according to the present invention includes a transmitter/receiver unit, an adder/subtracter unit and a video comparator/adder unit. The transmitter/receiver unit is used to generate first and second actual antenna beams. Echoes caused by such actual beams are received and processed to provide first sum and first difference signals and second sum and second difference signals corresponding to the first and second actual beams, respectively. These signals are then supplied to the adder/subtracter unit which adds the first sum and first difference signals to provide a result sigma sub 1 + K delta sub 1, subtracts the first sum and first difference signals to provide a result sigma sub 1 - K delta, adds the second sum and second difference signals to provide a result sigma sub 2 + K delta sub 1, and subtracts the second sum and second difference signals to provide a result sigma sub 2 - K delta sub 2.

Descriptors :   *MONOPULSE RADAR, *RADAR SIGNALS, *PATENTS, ANGLES, ANTENNAS, AZIMUTH, COMPARATORS, ECHOES, ELEVATION, INVENTIONS, RADAR, SIGNALS, TARGETS, TRANSMITTER RECEIVERS, RANGE FINDING, SIGNAL PROCESSING

Subject Categories : Active & Passive Radar Detection & Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE