Weak Target Detection of DRM-based Passive Bistatic Radar

ZHAO Zhi-xin;ZHU Si-hang;HONG Sheng;ZHOU Xin-hua;WANG Yu-hao

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  • Sponsored by: China Association for Science and Technology (CAST)

    Editor-In-Chief: Xu Yida

    ISSN 1000-1093

    　

  • Hosted By: China Ordnance Society

    Published By: Acta Armamentarii

    CN 11-2176/TJ

Acta Armamentarii, a Chinese monthly journal, was first published in 1979. The journal is supervised by China Association for Science and Technology, sponsored by China Ordnance Society，and edited and published by Editorial Board of Acta Armamentarii. The Journal is included in all important domestic databases，and also collected by Engineering Index (EI, USA), Chemical Abstracts (CA, USA), Science Abstracts (SA, UK）, Abstract Journal (AJ, Russia), and Current Bibliography on Science and Technology(CBST).Acta Armamentarii has been selected into the journal Of Ordnance Science and Technology (Weapons Industry) Field Of High Quality Scientific and Technological Periodical Classification Catalogue (2022 edition), ranking T1, and the journal of Automotive Engineering Field of High Quality Scientific and technological Periodical classification Catalogue, ranking T2.
Acta Armamentarii ›› 2017, Vol. 38 ›› Issue (11) : 2159-2165. DOI: 10.3969/j.issn.1000-1093.2017.11.011
Paper

Weak Target Detection of DRM-based Passive Bistatic Radar

  • ZHAO Zhi-xin， ZHU Si-hang， HONG Sheng， ZHOU Xin-hua， WANG Yu-hao
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Abstract

Passive radar is confronted with serious multipath clutter problem. Therefore, it is necessary to suppress the direct wave and multipath clutter, and improve the signal-to-noise ratio(SNR) and signal-to-clutter ratio (SCR) of target as much as possible. To solve this problem, a space-time domain combination adaptive technology is proposed based on the establishment of spatial, temporal and carrier-domain signal model for passive radar. In the technology, the spatial domain adaptive beamforming is used to get nulling in the direction of strong multipath clutter. And then a transversal filter is designed to eliminate weak clutter. The proposed space-time domain combination adaptive technology is used to process the simulated and measured data by taking DRM digital AM broadcast based passive bistatic radar for example. And it is proved that the proposed technology is practical, which can overcome the shortcomings of insufficient array degree of freedom and the insufficient clutter nulling depth due to low clutter noise rate in the spatial adaptive beamforming method.Key

Key words

ordnancescienceandtechnology / passivebistaticradar / clutterrejection / adaptivefilter / OFDMwaveform

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ZHAO Zhi-xin， ZHU Si-hang， HONG Sheng， ZHOU Xin-hua， WANG Yu-hao. Weak Target Detection of DRM-based Passive Bistatic Radar. Acta Armamentarii. 2017, 38(11): 2159-2165 https://doi.org/10.3969/j.issn.1000-1093.2017.11.011

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第38卷
第11期2017年11月兵工学报ACTA
ARMAMENTARIIVol.38No.11Nov.2017

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