Title:
INERTIAL NAVIGATION METHOD AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/135070
Kind Code:
A1
Abstract:
An inertial navigation method and apparatus, a mobile terminal, a computer readable storage medium, and a computer program product. Said method comprises: using an acceleration measurement device of a mobile terminal to obtain acceleration data of the mobile terminal (S201); processing the acceleration data on the basis of a first Kalman filter to obtain error data corresponding to the acceleration data, the first Kalman filter being a zero-order Kalman filter (S202); processing the acceleration data on the basis of the error data, to obtain processed target acceleration data (S203); and processing the target acceleration data on the basis of a second Kalman filter to obtain motion data of the mobile terminal (S204). In said method, after the acceleration data of the mobile terminal is measured, the error of the acceleration data is eliminated first by using the first Kalman filter, and then the motion data of the mobile terminal is calculated by using the second Kalman filter, so that real-time elimination of integration error can be achieved during an inertial navigation process, improving the accuracy of inertial navigation.
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Inventors:
GUO WEI (CN)
Application Number:
PCT/CN2021/133976
Publication Date:
June 30, 2022
Filing Date:
November 29, 2021
Export Citation:
Assignee:
BEIJING UNISOC COMM TECH CO LTD (CN)
International Classes:
G01C21/16
Foreign References:
| CN112525190A | 2021-03-19 | |||
| CN109655057A | 2019-04-19 | |||
| CN107215734A | 2017-09-29 | |||
| CN111351482A | 2020-06-30 | |||
| CN102538792A | 2012-07-04 | |||
| US20080004796A1 | 2008-01-03 |
Attorney, Agent or Firm:
LEADER PATENT & TRADEMARK FIRM (CN)
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