Title :
Four-channel monopulse for main beam nulling and tracking
Author :
Hoffman, John B. ; Galebach, Brian L. ; Johnson, Kenneth R.
Author_Institution :
Syst. Eng. Group Inc., MD, USA
Abstract :
A three-channel monopulse system consisting of the sum, delta alpha, and delta beta channels is used to angle-track detected targets in most phased array radar. The addition of a fourth monopulse channel can provide nulling of main beam jammers to significantly improve the detectability of targets that are within a beamwidth of the jammer. In addition to improved detectability, it is also possible to track targets in angle in the presence of main beam jamming using this technique
Keywords :
antenna phased arrays; interference suppression; radar antennas; radar detection; radar interference; radar tracking; angle tracking; beamwidth; delta alpha channel; delta beta channel; four-channel monopulse system; jammer; main beam jammers nulling; main beam jamming; main beam nulling; phased array radar; radar target detection; radar target tracking; sum channel; three-channel monopulse system; Cranes; Jamming; Phase detection; Phased arrays; Radar detection; Radar tracking; Stress; Systems engineering and theory; Target tracking; Wideband;
Conference_Titel :
Radar Conference, 1997., IEEE National
Conference_Location :
Syracuse, NY
Print_ISBN :
0-7803-3731-X
DOI :
10.1109/NRC.1997.588182
