Abstract
A Golay-based ultra wideband ground penetrating for underground pipes location is proposed and experimentally demonstrated. Golay complementary codes with the code length of 1024 and frequency of 1 GHz are used as the probe signals. The two-dimensional image of the buried pipes is achieved by a correlation method and a 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 the capability of deep detection.
Highlights
A High Signal–Noise Ratio UWB Radar for BuriedJingxia Li 1,2, * , Yang Liu 1,2 , Hang Xu 1,2 , Bingjie Wang 1,2 , Li Liu 1,2 and Xinpeng Chen 1,2
Detection and location of underground pipes before excavation work is extremely important.It can ensure faultless working processes and minimize the impacts on the existing pipes in the intervention area
Conventional UWB ground penetrating radar (GPR) utilizes short pulse as the transmit signals, which leads to a tradeoff between the resolution and the detection distance
Summary
Jingxia Li 1,2, * , Yang Liu 1,2 , Hang Xu 1,2 , Bingjie Wang 1,2 , Li Liu 1,2 and Xinpeng Chen 1,2. Key Laboratory of Advanced Transducers & Intelligent Control System, Ministry of Education and Shanxi. College of Physics & Optoelectronics, Taiyuan University of Technology, Taiyuan 030024, China. Received: 14 November 2019; Accepted: 22 November 2019; Published: 25 November 2019
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