golay complementary sequences
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Author(s):  
Fanxin ZENG ◽  
Xiping HE ◽  
Guixin XUAN ◽  
Zhenyu ZHANG ◽  
Yanni PENG ◽  
...  


2019 ◽  
Vol 9 (23) ◽  
pp. 5090 ◽  
Author(s):  
Jingxia Li ◽  
Yang Liu ◽  
Hang Xu ◽  
Bingjie Wang ◽  
Li Liu ◽  
...  

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.



Author(s):  
Yue Zeng ◽  
Lisheng Zhang ◽  
Fanxin Zeng ◽  
Xiping He ◽  
Guixin Xuan ◽  
...  




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