TY - GEN
T1 - Passive bistatic radar using digital terrestrial television broadcasting signal for subsurface target detection
AU - Feng, Weike
AU - Friedt, Jean Michel
AU - Wang, Suyun
AU - Liu, Hai
AU - Sato, Motoyuki
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/12
Y1 - 2019/12
N2 - A passive bistatic radar (PBR) system, which exploits the digital terrestrial television broadcasting (DTTB) emitter as the illumination source without using a dedicated transmitter, has been developed for subsurface target detection. Its main features are low system cost, high system flexibility, and no need for frequency allocation. In this paper, at first, the fundamental concept, system components, and basic signal processing methods are introduced. The characteristics of the adopted DTTB signal with the Japan ISDB-T standard are evaluated. Then, one of the key techniques for ISDB-T DTTB signal based PBR, i.e., reference signal refinement (reconstruction and modification), is presented to suppress the strong sidelobes in the range-Doppler domain caused by the waveform properties and multipath echoes. Preliminary experimental results are shown to demonstrate the basic functions of the developed radar system. It has been found that the reference signal refinement method can work well in practice and a metallic plate buried in the sand can be effectively detected by the developed PBR system. At last, potential improvement directions of the PBR system for subsurface target detection, e.g., combing multiple bands, working with cooperative targets, and using super-resolution algorithms, are provided.
AB - A passive bistatic radar (PBR) system, which exploits the digital terrestrial television broadcasting (DTTB) emitter as the illumination source without using a dedicated transmitter, has been developed for subsurface target detection. Its main features are low system cost, high system flexibility, and no need for frequency allocation. In this paper, at first, the fundamental concept, system components, and basic signal processing methods are introduced. The characteristics of the adopted DTTB signal with the Japan ISDB-T standard are evaluated. Then, one of the key techniques for ISDB-T DTTB signal based PBR, i.e., reference signal refinement (reconstruction and modification), is presented to suppress the strong sidelobes in the range-Doppler domain caused by the waveform properties and multipath echoes. Preliminary experimental results are shown to demonstrate the basic functions of the developed radar system. It has been found that the reference signal refinement method can work well in practice and a metallic plate buried in the sand can be effectively detected by the developed PBR system. At last, potential improvement directions of the PBR system for subsurface target detection, e.g., combing multiple bands, working with cooperative targets, and using super-resolution algorithms, are provided.
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U2 - 10.1109/PIERS-Fall48861.2019.9021707
DO - 10.1109/PIERS-Fall48861.2019.9021707
M3 - Conference contribution
AN - SCOPUS:85082451763
T3 - 2019 Photonics and Electromagnetics Research Symposium - Fall, PIERS - Fall 2019 - Proceedings
SP - 586
EP - 597
BT - 2019 Photonics and Electromagnetics Research Symposium - Fall, PIERS - Fall 2019 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2019 Photonics and Electromagnetics Research Symposium - Fall, PIERS - Fall 2019
Y2 - 17 December 2019 through 20 December 2019
ER -