Intelligent compensation method for coupling error of dynamic gravimeter

By constructing a comprehensive compensation method for coupling errors based on a long short-term memory model, this method analyzes and compensates for the multi-factor coupling errors of dynamic gravimeters in complex environments, solving the measurement accuracy and reliability problems in existing technologies and achieving higher measurement accuracy and environmental adaptability.

CN121935566APending Publication Date: 2026-04-28ROCKET FORCE UNIV OF ENG
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Patent Information

Application Number
CN202610100582.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-26
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

Existing technologies are insufficient to effectively suppress the strong coupling errors of nonlinearity, time-varying and mutual modulation caused by factors such as vibration, temperature change and carrier mobility in complex environments, resulting in a decrease in measurement accuracy and reliability.

Method used

We employ a machine learning approach based on a long short-term memory model to analyze the coupling error impact mechanism of typical environmental disturbances, construct a comprehensive compensation model for coupling errors, and achieve intelligent compensation for multi-factor disturbances through a data-driven loss function and physical information constraints.

Benefits of technology

This improves the measurement accuracy and environmental adaptability of the dynamic gravimeter under complex and multi-factor interference conditions, reduces the requirements for the scale and quality of training data, and enhances measurement accuracy and practicality.

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Abstract

An intelligent compensation method for coupling errors of a dynamic gravimeter comprises the following steps: selecting typical environment interference influencing the dynamic gravimeter in a complex measurement environment, and analyzing an influence mechanism of each typical environment interference on the measurement accuracy of the dynamic gravimeter; according to the influence mechanism under each typical environment interference, analyzing a coupling error influence mechanism between the typical environment interferences; based on the coupling error influence mechanism, constructing a coupling error comprehensive compensation model; adding the coupling effect loss into a data-driven loss function, and defining a model coefficient constrained by physical information; and performing model training by using the training data, and calculating the total loss of the verification set on the obtained model to obtain a final coupling error comprehensive compensation model. According to the invention, the coupling error of the dynamic gravimeter in a complex environment is compensated based on coupling error mechanism analysis and a physical constraint long-short-term memory model, and the measurement precision and environmental adaptability of the dynamic gravimeter under complex multi-factor interference conditions are improved.
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