Shift double-wavelet iteration method for detecting ship load measurement gross error

The invention relates to a shift double-wavelet iteration method for detecting a ship load measurement gross error, and the method comprises the steps: carrying out the shift double-wavelet decomposition of a ship load measurement value sequence, and obtaining a double-wavelet coefficient; secondly,...

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Bibliographic Details
Main Authors CHEN YI, CHEN XIN, WANG XU, DENG KAILIANG, FAN JINYU
Format Patent
LanguageChinese
English
Published 24.02.2023
Subjects
CALCULATING
COMPUTING
COUNTING
DETECTING MASSES OR OBJECTS
ELECTRIC DIGITAL DATA PROCESSING
GEOPHYSICS
GRAVITATIONAL MEASUREMENTS
MEASURING
PHYSICS
TESTING
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Summary:The invention relates to a shift double-wavelet iteration method for detecting a ship load measurement gross error, and the method comprises the steps: carrying out the shift double-wavelet decomposition of a ship load measurement value sequence, and obtaining a double-wavelet coefficient; secondly, carrying out dual-threshold processing on a wavelet coefficient after shift dual-wavelet decomposition of the ship load measuring line signal, detecting a discrete state gross error, and carrying out iterative processing on a regional state gross error to realize detection of the regional state gross error; and finally, reconstructing the identified gross error by using a robust estimation solution, and carrying out gross error positioning by using the difference between the initial shipborne load measured value and the reconstructed shipborne load measured value after the double-wavelet iteration processing, thereby realizing the accurate detection of the discrete state gross error and the regional state gross er
Bibliography:Application Number: CN202211389582