Error parameter calibration method and device
A technology of error parameters and calibration methods, which is applied in directions such as navigation through velocity/acceleration measurement, and can solve the problem that the error parameters cannot meet the attitude and positioning of aircraft and spacecraft.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0078] figure 1 It is a flow chart of an error parameter calibration method in Embodiment 1 of the present invention. This embodiment is applicable to the situation where on-orbit calibration of the error parameters of the guidance tool is required. The method can be performed by an error parameter calibration device, wherein The means can be realized by software and / or hardware. refer to figure 1 , the error parameter calibration method provided in this embodiment may specifically include the following steps:
[0079] S110. Establish a state equation and a measurement equation of the aircraft navigation system. Both the state equation and the measurement equation include an error parameter vector, and the error parameter vector is composed of a plurality of error parameters.
[0080] Specifically, the error parameters include platform misalignment angle error, velocity error, position error, gyro scale factor error, gyro drift error, accelerometer scale factor error, and ac...
Embodiment 2
[0116] figure 2 It is a structural diagram of an error parameter calibration device in Embodiment 2 of the present invention. This embodiment is applicable to situations where on-orbit calibration of the error parameters of the guidance tool is required. refer to figure 2 , the error parameter calibration device provided in this embodiment can specifically be as follows:
[0117] The building block 210 is used to establish the state equation and the measurement equation of the aircraft navigation system, the state equation and the measurement equation all include an error parameter vector, and the error parameter vector is composed of a plurality of error parameters;
[0118] A judging module 220, configured to judge the observability of each of the error parameters;
[0119] The calibration module 230 is configured to calibrate the observable error parameters by using Kalman filtering or adaptive filtering with a preset duration as the filtering period when there are obse...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com