Open AccessAlgorithm supplement of four‐channel two‐target resolution for amplitude‐comparison monopulse radar
Author(s) -
Wang Yufei,
Ma Jiazhi,
Shi Longfei
Publication year - 2021
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/ell2.12216
Subject(s) - amplitude comparison monopulse , monopulse radar , amplitude , computer science , radar , phase (matter) , algorithm , electronic engineering , physics , optics , telecommunications , radar imaging , continuous wave radar , engineering , radar engineering details , quantum mechanics
The traditional four‐channel monopulse two‐target resolution algorithm can only apply to phase‐comparison monopulse radars with four parallel beams and is not suitable for amplitude‐comparison monopulse radars with four squint beams. For this case, a supplementary algorithm is proposed here. By a novel matrix transform processing, virtual phase‐comparison monopulse signals are generated from the received amplitude‐comparison monopulse signals and the angles of the targets can be estimated by the traditional four‐channel monopulse resolution algorithm. Moreover, by restructuring the amplitude‐comparison monopulse signals of the two targets from the estimation results, the estimation bias caused by the monopulse curves inconsistency of the phase‐comparison antenna and the amplitude‐comparison antenna is eliminated as well. Simulations validate the effectiveness of the algorithm.