CAJ | 학술논문

电磁波CT测井技术利用CT接收机接收到的数据来反演重建图像，从而获取地质信息，但数据中含有的噪声将严重影响重建图像的质量，所以对采集的数据进行有效滤波就成为了电磁波CT成像的关键一环。针对传统采集方式获取的数据受噪声影响大的问题，对每一通道进行短时连续采样，将采集数据构造成三维矩阵，再把此三维矩阵按采样维和幅值维分解为二维矩阵，逐点进行加权滑动平均预处理，与限幅算数平均滤波方法相比，前者在恢复数据具有更好的平滑度且克服了限幅算数平均滤波对信号失真较大的弊端，能够为电磁波CT井间探测提供更准确的数据。
전자파CT측정기술이용CT접수궤접수도적수거래반연중건도상，종이획취지질신식，단수거중함유적조성장엄중영향중건도상적질량，소이대채집적수거진행유효려파취성위료전자파CT성상적관건일배。침대전통채집방식획취적수거수조성영향대적문제，대매일통도진행단시련속채양，장채집수거구조성삼유구진，재파차삼유구진안채양유화폭치유분해위이유구진，축점진행가권활동평균예처리，여한폭산수평균려파방법상비，전자재회복수거구유경호적평활도차극복료한폭산수평균려파대신호실진교대적폐단，능구위전자파CT정간탐측제공경준학적수거。
Electromagnetic wave CT logging technology using CT receiver receives the data to reconstruct image ,getting geological information ,but the data that contains noise will seriously affect the quality of the reconstructed image ,so fil‐tering data efficiently has become a key link of the electromagnetic wave CT imaging .Because of the traditional way to get data is deeply affected by noise ,proposed taking short quick sampling method to obtain data for each channel ,con‐structed three‐dimensional matrix by the data ,then decomposed it into two‐dimensional matrix ,using the weighted mov‐ing average procession point by point .According to the method of filtering by limiting arithmetic average ,the former one has a better filtering performance in smoothing data in the aspect of recovering data ,and overcomes the disadvantage that the method of filtering by limiting arithmetic average will have more serious distortions .It can support more exact data for the cross‐hole electromagnetic wave detection .