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Microsystem Technologies

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01-08-2005 | Technical paper

Basic study on filtering using the frequency characteristics of reflected waves from underground radar

Authors: Yoshikazu Sudo, Yoshihiko Nomura, Yuji Nagashima

Published in: Microsystem Technologies | Issue 8-10/2005

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Abstract

The waves reflected from objects were extracted and basic studies were conducted on the frequency characteristics of these reflected waves with aim of improving the signal/noise ratio of underground radar images. Aerial tests conducted on steel pipes and steel plates showed that the respective hyperbolic curve signals have different characteristics. Using this principle to filter the signals from buried pipes made it possible to extract only the buried pipe signals.The efficiency to distinguish individual object in underground radar images can be improving by using this filter effectively.

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Akutsu H, Nagashima Y, Masuda J, Kouno S, Sudo Y (1990) Development of an underground radar system, NO-DIG OSAKA, L4.1-L4.8

Arai L, Suzuki T (1983) An underground radar system. Trans IECE of Japan, J66-B,713

Miyanaga H, Yamauchi H, Nagashima Y, Hosaka T (1992) A high speed special purpose processor for underground object detection, IECE Trans Electron. E75-C(10):1250–1258

Nagashima Y, Masuda J, Arioka R, Kouno S, Sudo Y (1990) Underground radar system utilizing pattern recognition technique in frequency domain, SPIE, vol 1360, Visual Communications and Image Processing‘90, pp 1671–1681

Sudo Y, Nomura Y, Nagashima Y (2002a) A cavity signal recognition method using spectrum pattern analysis in GPR received wave. Mechanical Engineering Congress, Japan, vol. VII, pp 239–240

Sudo Y, Nomura Y, Nagashima Y (2002b) Extraction of cavity signals from underground radar images using frequency analysis, In: The 6th international conference on mechatronics technology, ICMT2002, pp 129–134

Sudo Y, Nomura Y, Nagashima Y (2003) Basic Study of Signal Extraction Method Using Frequency Domain Characteristics of Reflected Waves from Ground Penetrating Radar. IIP/ISPS Joint MIPE’03, pp 86–87

Ueno K, Osumi N (1985) Microwave holographic imaging of underground objects. IEEE Trans Ant Prop AP-33(2) pp 152–159

Title: Basic study on filtering using the frequency characteristics of reflected waves from underground radar
Authors: Yoshikazu Sudo
Yoshihiko Nomura
Yuji Nagashima
Publication date: 01-08-2005
Publisher: Springer-Verlag
Published in: Microsystem Technologies / Issue 8-10/2005
Print ISSN: 0946-7076
Electronic ISSN: 1432-1858
DOI: https://doi.org/10.1007/s00542-005-0555-z

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