基于PID控制器迭代向下延拓法的GATEM数据解释方法

IF 0.6 4区计算机科学 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

Applied Computational Electromagnetics Society Journal Pub Date : 2020-10-16 DOI:10.21203/rs.3.rs-92027/v1

Shan-shan Guan, Yu Zhu, Bingxuan Du, Dong-sheng Li, Yuan Wang, Qiong Wu, Yanju Ji

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引用次数: 1

摘要

地源机载时域电磁(GATEM)系统在山区等复杂区域具有效率高的优点。目前广泛采用的剖面解释方法忽略了飞行高度的影响，严重影响了浅层异常的解释和成像精度。提出了PID控制器迭代向下延拓的方法。在原有延拓迭代法的基础上，增加了微分系数和积分系数。结果表明，新方法显著减少了迭代次数，并与数值积分解进行了比较，验证了新方法的精度。将PID控制器迭代向下延拓法应用于GATEM数据的解释。对于合成数据，延拓后的解释结果比z = 30 m的解释结果更接近真实模型。该方法还应用于山西省阳泉市GATEM油田资料。利用PID控制器迭代向下延拓的结果进行解释，得到一个可靠的GATEM场。

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Interpretation Method of GATEM Data Based on PID Controller Iteration Downward Continuation Method

The Ground-source Airborne Time-domain Electromagnetic (GATEM) system has advantages for high efficiency and complex areas such as mountainous zone. The widely used section interpretation method, ignoring the impact of flight height, which seriously affects the interpretation and imaging accuracy of shallow anomalies. The PID controller iteration downward continuation method is proposed. Based on the original continuation iteration method, the differential coefficient and integral coefficient are added. The result shows that the new method remarkably decreases the iteration number and the accuracy are verified by comparison with the numerical integration solution. The PID controller iteration downward continuation method is applied to the interpretation of GATEM data. For synthetic data, the after continuation interpretation results are closer to the true model than the z = 30 m interpretation results. The method is also applied to GATEM field data in Yangquan City, Shanxi Province, China. The interpretation performs using PID controller iteration downward continuation results in a reliable GATEM field.

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来源期刊

Applied Computational Electromagnetics Society Journal 工程技术-电信学

CiteScore

1.60

自引率

28.60%

发文量

审稿时长

9 months

期刊介绍： The ACES Journal is devoted to the exchange of information in computational electromagnetics, to the advancement of the state of the art, and to the promotion of related technical activities. A primary objective of the information exchange is the elimination of the need to "re-invent the wheel" to solve a previously solved computational problem in electrical engineering, physics, or related fields of study. The ACES Journal welcomes original, previously unpublished papers, relating to applied computational electromagnetics. All papers are refereed. A unique feature of ACES Journal is the publication of unsuccessful efforts in applied computational electromagnetics. Publication of such material provides a means to discuss problem areas in electromagnetic modeling. Manuscripts representing an unsuccessful application or negative result in computational electromagnetics is considered for publication only if a reasonable expectation of success (and a reasonable effort) are reflected. The technical activities promoted by this publication include code validation, performance analysis, and input/output standardization; code or technique optimization and error minimization; innovations in solution technique or in data input/output; identification of new applications for electromagnetics modeling codes and techniques; integration of computational electromagnetics techniques with new computer architectures; and correlation of computational parameters with physical mechanisms.