摘要
Dear Editor,This letter concerns the localization of three-core underwater cables which are widely deployed for offshore energy transmission.It is a non-trivial problem,since the external magnetic field of threecore underwater cables is variable which reduces the accuracy of localization.To solve this problem,in this letter,an approximate equation is firstly derived to formulate the external magnetic field of a three-core armored underwater cable by considering the seafloor environments and the structure of three-core cables.
基金
supported by the National Natural Science Foundation of China(61973085)。
