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Open AccessArticle

Signal Processing and Target Fusion Detection via Dual Platform Radar Cooperative Illumination

1
Air Force Early Warning Academy, Wuhan 430019, China
2
The 93552 Troop of Chinese People's Liberation Army, Shijiazhuang 050081, China
*
Author to whom correspondence should be addressed.
Sensors 2019, 19(24), 5341; https://doi.org/10.3390/s19245341
Received: 8 November 2019 / Revised: 28 November 2019 / Accepted: 3 December 2019 / Published: 4 December 2019
(This article belongs to the Special Issue Sensor Network Signal Processing)
A modified signal processing and target fusion detection method based on the dual platform cooperative detection model is proposed in this paper. In this model, a single transmitter and dual receiver radar system is adopted, which can form a single radar and bistatic radar system, respectively. Clutter suppression is achieved by an adaptive moving target indicator (AMTI). By combining the AMTI technology and the traditional radar signal processing technology (i.e., pulse compression and coherent accumulation processing), the SNR is improved, and false targets generated by direct wave are suppressed. The decision matrix is obtained by cell averaging constant false alarm (CA-CFAR) and order statistics constant false alarm (OS-CFAR) processing. Then, the echo signals processed in the two receivers are fused by the AND-like fusion rule and OR-like fusion rule, and the detection probability after fusion detection in different cases is analyzed. Finally, the performance of the proposed method is quantitatively analyzed. Experimental results based on simulated data demonstrate that: (1) The bistatic radar system with a split transceiver has a larger detection distance than the single radar system, but the influence of clutter is greater; (2) the direct wave can be eliminated effectively, and no false target can be formed after suppression; (3) the detection probability of the bistatic radar system with split transceivers is higher than that of the single radar system; and (4) the detection probability of signal fusion detection based on two receivers is higher than that of the bistatic radar system and single radar system.
Keywords: cooperative illumination; cooperative detection; signal processing; target fusion detection cooperative illumination; cooperative detection; signal processing; target fusion detection
MDPI and ACS Style

Wang, H.; Tang, Z.; Zhao, Y.; Chen, Y.; Zhu, Z.; Zhang, Y. Signal Processing and Target Fusion Detection via Dual Platform Radar Cooperative Illumination. Sensors 2019, 19, 5341.

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