Title:
CONTOUR-LINE MATCHING METHOD BASED ON SLIDING WINDOW DATA BACKTRACKING
Document Type and Number:
WIPO Patent Application WO/2023/087971
Kind Code:
A1
Abstract:
A contour-line matching method based on sliding window data backtracking, which method belongs to the field of geophysical field aided inertial navigation. In the method, a sliding window parameter is determined according to the calculation performance of a real-time multi-task operating system, and accuracy requirements of aided navigation; a sliding window data backtracking framework is constructed by using historical physical field value matching data; a rotation and transform matrix from an indication track point set to the nearest reference point set is obtained by using eigenvalue and eigenvector decomposition methods for a matrix; and global track constraint is realized by means of moving a sliding window and performing forward and reverse cyclic matching, such that the matching accuracy and robustness can be improved.
Inventors:
CHENG XIANGHONG (CN)
DING PENG (CN)
DING PENG (CN)
Application Number:
PCT/CN2022/124229
Publication Date:
May 25, 2023
Filing Date:
October 10, 2022
Export Citation:
Assignee:
UNIV SOUTHEAST (CN)
International Classes:
G01C21/20; G01C21/04; G01C21/16; G06F17/16
Foreign References:
| CN114061591A | 2022-02-18 | |||
| CN101520328A | 2009-09-02 | |||
| CN107330898A | 2017-11-07 | |||
| CN107883948A | 2018-04-06 | |||
| CN104390646A | 2015-03-04 | |||
| CN111486845A | 2020-08-04 | |||
| US20120022820A1 | 2012-01-26 |
Attorney, Agent or Firm:
NANJING ZHONGLIAN PATENT AGENCY CO., LTD. (CN)
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