Open AccessDetection performance analysis of hybrid MIMO radar
Author(s) -
Zhang Qilei,
Wu Manqing,
Yu Wenxian
Publication year - 2019
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2019.0046
Subject(s) - mimo , computer science , phased array , detector , radar , algorithm , radar systems , electronic engineering , signal to noise ratio (imaging) , telecommunications , engineering , beamforming , antenna (radio)
This study focuses on the detection performance analysis of a notional hybrid MIMO radar, which can be seen as a combination of the phased‐array and distributed MIMO radars. The signal model of the proposed hybrid MIMO radar is re‐derived using the Rayleigh target model. In the sense of Neyman–Person principle, the optimal detector is developed. Then, the detection performance bound is derived based on the relative entropy. Theoretical derivation and numerical examples show that, for most common signal‐to‐noise ratio (SNR) cases, the detection performance of the hybrid MIMO is better than the conventional phased‐array and MIMO radars. Furthermore, for the high SNR case, the proposed system configuration with larger number of sub‐arrays performs better detections, while in the low SNR case, that with smaller number of sub‐arrays performs better detections.