Open AccessMoving target detection in clutter background with FDA‐MIMO radar via three‐dimensional focus processing
Author(s) -
Chen Xiaolong,
Xue Yonghua,
Chen Baoxin,
Huang Yong,
Guan Jian
Publication year - 2019
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2019.0341
Subject(s) - clutter , computer science , moving target indication , continuous wave radar , space time adaptive processing , mimo , radar , radar engineering details , focus (optics) , low probability of intercept radar , artificial intelligence , electronic engineering , radar imaging , telecommunications , engineering , physics , beamforming , optics
Low observable moving target‐detection technology under clutter background is the key factor affecting the radar performance. Here, frequency diverse array (FDA) MIMO radar is investigated for low‐observable moving target detection. FDA‐MIMO radar not only has all the advantages of phased array and MIMO radar, but also can make a two‐dimensional joint estimation of the target distance and azimuth. In order to achieve coherent integration for Doppler processing, a novel three‐dimensional processing method is proposed, i.e. space‐range‐Doppler focus (SRDF) processing. It utilises the property of FDA and high‐resolution Doppler processing of MIMO. After discussing signal model of FDA‐MIMO radar, the flowchart of SRDF‐based low‐observable moving target detection and estimation is provided. Finally, simulation of moving target detection in clutter background verifies that proposed method has better ability for joint angle‐range‐Doppler processing with higher resolutions.