Shandong Science ›› 2020, Vol. 33 ›› Issue (6): 8-15.doi: 10.3976/j.issn.1002-4026.2020.06.002

• Oceanographic Science, Technology and Equipment • Previous Articles     Next Articles

Analysis of the factors influencing target detection in sea clutter area through a compact high frequency surface wave radar

WANG Yi-ming12, JI Yong-gang3   

  1. 1.First Instritute of OceanographyMNR Qingdao 266061China; 2.Harbin Institute of Technology,Harbin 150001,China;3.China University of Petroleum (Huadong),Qingdao 266580,China

  • Received:2020-11-09 Online:2020-12-09 Published:2020-12-09

Abstract:

In this study, theoretical and statistical analysis of relevant influencing factors, including the signal coherent accumulation time, connection between the vessel navigation state and sea clutter area and the joint domain study of measured data, are conducted to facilitate the detection of target vessels from the sea clutter of a compact high frequency surface wave radar. The obtained results provide a range of signal coherent integration time. The results show that the potential dwell time of long-distance non-maneuvering target in sea clutter is over the signal coherent integration time. Furthermore, the Doppler variation induced by the non-maneuvering targets in sea clutter is limited. However, the sea clutter and non-maneuvering targets exhibit major differences in the space-time and polarization domains, which can be considered as an important criteria for target detection from sea clutter.

Key words: high frequency surface wave radar, signal coherent integration, sea clutter, influencing factors of target detection

CLC Number: 

  • TP391.8