CAJ | 학술논문

电偶源是研究电磁法探测原理中常被使用的一种主动源。在实际工作中，常采用供电导线向大地发射电流，当发射端与接收点距离远大于供电导线两极长度时，才可将供电导线看作是电偶极子。但在很多情况下并不满足此条件，使基于电偶极子的场计算公式不再适用，因此正反演中需要先将长导线源切分成若干个电偶极子，然后对各偶极子的场响应进行叠加。对此，这里研究并实现了将长导线源切分成多个电偶极子的算法，以二分法为原理的递归切分算法切分出的电偶极子数目相对较多；以穷举法为原理的切分算法在穷举步长较小（如0．1 m）时能较准确地切分出电偶极子的位置。两种算法都可应用于长导线源正反演场的计算。
전우원시연구전자법탐측원리중상피사용적일충주동원。재실제공작중，상채용공전도선향대지발사전류，당발사단여접수점거리원대우공전도선량겁장도시，재가장공전도선간작시전우겁자。단재흔다정황하병불만족차조건，사기우전우겁자적장계산공식불재괄용，인차정반연중수요선장장도선원절분성약간개전우겁자，연후대각우겁자적장향응진행첩가。대차，저리연구병실현료장장도선원절분성다개전우겁자적산법，이이분법위원리적체귀절분산법절분출적전우겁자수목상대교다；이궁거법위원리적절분산법재궁거보장교소（여0．1 m）시능교준학지절분출전우겁자적위치。량충산법도가응용우장도선원정반연장적계산。
Electric dipole is a positive electrical current source which is usually used to research principles on electromagnetic prospecting method.We often introduce the power supply wire to transmit current towards the ground in actual jobs.When the distance between the transmitter and the receiver is far larger than the length of the power supply wire,which can be regarded as electric dipole.Howere,the condition of the power supply wire being electric dipole is not be satisfied in many case.This leads to formulas of calculating fields based on the electric dipole not be applicable.In this case,long wire source needs to be cut some electric dipoles,then to add every dipole's response.To solve the problem,the paper studied and realized algorithms to segment long wire source into some electric dipoles.The more electric dipoles can be got when to use the recursion algorithm based on the principle of binary search,the more accuracy positions of electric dipoles can be found when to use the algorithm based on exhaustion method if a smaller step chosen (for instance 0.1 meters).Both of the two algorithms can be applied for the calculating fields of long wire source in the forward and the inversion.