Adaptive monopulse for direction of arrival estimation under mainlobe interference

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Authors
Wang, Dan
Advisors
Issue Date
2018-05-03
Type
Conference paper
Keywords
Monopulse , Adaptive , Communication , Wireless
Research Projects
Organizational Units
Journal Issue
Citation
Dan Wang, "Adaptive monopulse for direction of arrival estimation under mainlobe interference", Proc. SPIE 10643, Autonomous Systems: Sensors, Vehicles, Security, and the Internet of Everything, 1064313 (3 May 2018)
Abstract

As the dramatic advancement in array signal processing, the phase array radar becomes widely used in military. However, the electromagnetic environment is very complicated with different kinds of electromagnetic interference. It makes the expected signal very difficult to be accurately received. The adaptive interference suppression method is adopted in the phase array radar to suppress the different kinds of interference. But this method works well only if the interference is the sidelobe interference. In this paper, we propose a two layer adaptive monopulse method to suppress the mainlobe and sidelobe interference. The main idea is to divide the mainlobe interference suppression and sidelobe interference suppression into two layers. First, the mainlobe maintains the same when performing sidelobe interference suppression. Then, the mainlobe interference is suppressed at the pitch and azimuth while the monopulse ratio stays unchanged. The simulation results show that our proposed method has good performance in estimation of the direction of arrival and interference suppression.

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Publisher
SPIE
Journal
Book Title
Series
Autonomous Systems: Sensors, Vehicles, Security, and the Internet of Everything;v.10643
PubMed ID
DOI
ISSN
0277-786X
EISSN