Working Paper Article Version 1 This version is not peer-reviewed

A High Signal Noise Ratio UWB Radar for Buried Pipe Location Using Golay Complementary Sequences

Version 1 : Received: 25 September 2019 / Approved: 26 September 2019 / Online: 26 September 2019 (05:08:10 CEST)

How to cite: Li, J.; Liu, Y.; Xu, H.; Wang, B.; Liu, L.; Chen, X. A High Signal Noise Ratio UWB Radar for Buried Pipe Location Using Golay Complementary Sequences. Preprints 2019, 2019090293 Li, J.; Liu, Y.; Xu, H.; Wang, B.; Liu, L.; Chen, X. A High Signal Noise Ratio UWB Radar for Buried Pipe Location Using Golay Complementary Sequences. Preprints 2019, 2019090293

Abstract

An experimental ultra wideband ground penetrating radar based on Golay complementary sequences is proposed to locate underground pipes. Golay complementary sequences with the code length of 1024 and frequency of 1 GHz are used as the probe signals. Two-dimensional image of the buried pipes is achieved by correlation method and back projection algorithm. The experimental results show that both the plastic pipe and metallic pipe can be located with a range resolution of 10 cm. Furthermore, as the Golay complementary sequences are a pair of complementary sequences, the sum of their correlation function yields twice the value of the peak at the target position and zero elsewhere. Thus, compared with the stepped frequency signal radar or chaotic signal radar, the Golay-based radar can significantly improve the signal noise ratio and has capability of deep detection.

Subject Areas

golay complementary sequences; sidelobes; pipe detection; chaotic signal

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