Gravimeter Zero-Drift Correction via Inflection Point Segmentation
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Solution Overview
Problem
Current gravimeter zero-drift correction methods suffer from low accuracy, which affects the precision of gravity measurements during ocean exploration.
Innovation Solution
A method that involves acquiring standard and actual monitoring data, determining difference values, identifying inflection points, and applying specific correction formulas to correct these values, either uniformly or differently on either side of inflection points, to enhance the accuracy of zero-drift correction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional gravimeter zero-drift correction methods are used, then the correction process is simple, but the accuracy of the correction is low
Solution Approach 1:
The patent segments the correction process by identifying inflection points in the difference value sequence, dividing the data into multiple segments that are corrected differently. This allows the method to adapt to changing drift characteristics while maintaining manageable complexity through localized correction strategies.
Solution Approach 2:
The patent implements a dynamic correction approach by detecting inflection points and adjusting the correction strategy based on the identified segments. The method transitions from static uniform correction to dynamic adaptive correction, improving accuracy by responding to actual drift pattern changes in the data.
2Measurement precision
If uniform correction is applied to all difference values, then the correction method is simple, but it cannot accurately handle non-linear drift patterns
Solution Approach 1:
The patent divides the correction process into segments based on inflection point detection. Each segment between inflection points is corrected using appropriate methods, allowing the system to handle non-linear drift patterns effectively while keeping each individual correction step relatively simple and manageable.
Solution Approach 2:
The patent applies different correction qualities to different parts of the data based on local characteristics. By identifying inflection points and treating each segment with appropriate correction methods, the system achieves high overall accuracy without requiring complex global correction algorithms.
Data Source
AI summary
The present application discloses a gravimeter zero-drift correction method, apparatus and electronic device, which belongs to the field of gravimeter correction. The gravimeter zero-drift correction method includes: acquiring standard comparison data and actual monitoring data of the gravimeter; determining a plurality of difference values between the actual monitoring data and the standard comparison data; determining the presence or absence of an inflection point among a plurality of difference values; correcting a plurality of difference values in the absence of inflection point among a plurality of difference values; correcting difference values on both sides of a demarcation point respectively by taking an infection point as a demarcation point, in the presence of an inflection point among a plurality of difference values.