本文選題：位場 + 解析延拓　； 參考：《地球物理學(xué)報》2016年02期

【摘要】：位場的向下延拓對重、磁等位場資料的處理與解釋具有重要意義,但現(xiàn)有的延拓方法在位場向下接近場源時會產(chǎn)生劇烈震蕩,計算過程很不穩(wěn)定,而且理論上都不能越過場源.本文在復(fù)數(shù)域里定義了一個具有位場和幾何雙重特性的新函數(shù)PFGR,提出了一套新的延拓方法,在理論上實現(xiàn)了位場在包含場源的下半空間里的解析延拓,經(jīng)過模型試算驗證,表明該方法可以延拓越過場源,準(zhǔn)確確定場源奇點,計算過程穩(wěn)定,對測量中的隨機噪聲也具有較好的抗干擾能力.
[Abstract]:The downward continuation of the potential field is of great significance to the processing and interpretation of the gravity and magnetic field data. However, the existing continuation methods will produce severe oscillations when the potential field approaches the field source downward, the calculation process is very unstable, and the theory cannot cross the field source. In this paper, a new function PFGRwith potential field and geometric dual properties is defined in the complex field, and a new continuation method is proposed. The analytic continuation of the potential field in the lower half space containing the field source is theoretically realized. It is shown that this method can be extended over the field source, and the singularity of the field source can be accurately determined. The calculation process is stable, and the method has good anti-interference ability to the random noise in the measurement.
【作者單位】： 中國地質(zhì)科學(xué)院地球深部探測中心;地下信息探測技術(shù)與儀器教育部重點實驗室(中國地質(zhì)大學(xué) 北京);
【基金】：國家深部探測技術(shù)與實驗研究專項(SinoProbe-08)資助
【分類號】：P631

【共引文獻】

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1 侯貴廷,錢祥麟,史，

本文編號：2008621