CAJ | 학술논문

在物探数据处理与解释过程中，反演的多解性大大增加了解释的难度，严重影响到计算结果的可靠性与准确性。可靠性并非指只满足于模型体计算出的理论异常与观测异常的“拟合”好坏，还要考虑得到的模型体与实际地质体的“符合程度”。如何满足上述要求，降低多解性达到高精度的处理与解释，成为选择反演方法的一大主要因素。目前等效源反演成像理论在重、磁领域的应用已经取得了一定的进展，为了证明该方法在时间域激发极化法中同样适用，这里设计了三个高阻球体模型，根据其计算出的理论异常值进行反演成像，并结合实际资料进行计算与处理，基本能够确定出场源体的空间位置、大小、形状，从理论与实际应用效果两方面证明了该方法的可信性和准确性。
재물탐수거처리여해석과정중，반연적다해성대대증가료해석적난도，엄중영향도계산결과적가고성여준학성。가고성병비지지만족우모형체계산출적이론이상여관측이상적“의합”호배，환요고필득도적모형체여실제지질체적“부합정도”。여하만족상술요구，강저다해성체도고정도적처리여해석，성위선택반연방법적일대주요인소。목전등효원반연성상이론재중、자영역적응용이경취득료일정적진전，위료증명해방법재시간역격발겁화법중동양괄용，저리설계료삼개고조구체모형，근거기계산출적이론이상치진행반연성상，병결합실제자료진행계산여처리，기본능구학정출장원체적공간위치、대소、형상，종이론여실제응용효과량방면증명료해방법적가신성화준학성。
In the process of geophysical data processing and interpretation,inversion multiple solution greatly increases the difficulty of interpretation and seriously affect the reliability and accuracy of the results.Reliability not only means the degree of the "fit" between theoretical anomaly and observed anomaly,but also consider the"consistent"of the model body with the ac-tual geological body.How to meet the above requirements and reduce multiple solutions to improve the accuracy of the process-ing and interpretation becomes one of the main factors to choose the inversion methods.Currently,the equivalent source inver-sion imaging theory in gravity and magnetic fields has made some progress.In order to prove that the method in the time do-main induced polarization method is also applicable,I designed three impedance sphere models,and based on the theoretical a-nomaly values to do inversion imaging.Then,combined with the actual data,I carried on the calculation and processing.We can roughly determine the spatial location,the size and the shape of the source body.It proved the credibility and accuracy of the method from the theory and practical application.