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Design X‐band monopulse tracking system
Author(s) -
Kwon KunSup,
Park Joongki,
Kim Woohyun,
Lee HoSub,
Park DoHyun,
Heo JongWan
Publication year - 2019
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.31672
Subject(s) - monopulse radar , amplitude comparison monopulse , tracking (education) , tracking system , electronic engineering , antenna (radio) , magic tee , signal (programming language) , engineering , physics , computer science , optics , power dividers and directional couplers , radar , telecommunications , hybrid coupler , electrical engineering , continuous wave radar , radar imaging , radar engineering details , psychology , pedagogy , programming language , filter (signal processing)
In this letter, a higher‐order‐mode coupler using waveguide for multimode monopulse satellite tracking and signal processing schemes handling the signal from the higher‐order‐mode coupler are proposed. The proposed higher‐order‐mode coupler uses TM 01 mode for compactness and weight reduction, making it suitable for OTM satellite tracking systems. The TM 01 mode is extracted from the two H‐plane slots of the circular waveguide and then divided signals are combined through magic‐T structure. Also, the sum and difference radiation patterns of antenna applicable to monopulse satellite tracking are generated. A monopulse tracking data is extracted using the proposed signal processing schemes to the antenna radiation patterns. The influence of Doppler effect and noise is concerned to enhance tracking accuracy and sliding techniques are adopted to deal with an instantaneous tracking system. Designed X‐band higher‐order‐mode coupler of TM 01 mode and signal processing schemes are expected to be used for all OTM monopulse satellite tracking systems.