Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Accelerometer combination high-order error coefficient separation and compensation method and system

An accelerometer and error coefficient technology, applied in the field of inertial navigation, can solve problems such as no system-level centrifuge test method, and achieve the effects of overcoming slow convergence, improving efficiency and high confidence

Pending Publication Date: 2022-01-11
BEIJING INST OF AEROSPACE CONTROL DEVICES
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] On pages 625-630 of "Inertial Devices (Part 2)" (China Aerospace Press), centrifuge tests at the single-meter level (such as quartz accelerometers, gyro accelerometers, etc.) are introduced, but there is no system-level centrifuge test method

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Accelerometer combination high-order error coefficient separation and compensation method and system
  • Accelerometer combination high-order error coefficient separation and compensation method and system
  • Accelerometer combination high-order error coefficient separation and compensation method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0076] In order to make the object, technical solution and advantages of the present invention clearer, the embodiments disclosed in the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0077] Such as figure 1 , in this embodiment, the accelerometer combines high-order error coefficient separation and compensation methods, including:

[0078] Step 101, establishing a separate test system for the high-order error coefficient of the accelerometer combination.

[0079] In this embodiment, the centrifuge lever arm 2 is installed on the base 1, the reverse platform 4 is installed on one end of the centrifuge lever arm 2, and the counterweight 5 is installed on the other end of the centrifuge lever arm 2, and then Construct the accelerometer combined high-order error coefficient separation test system, such as figure 2 shown. Wherein, the connection point between the centrifuge arm 2 and the base 1 is the center of the ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an accelerometer combination high-order error coefficient separation and compensation method and system. The method comprises the following steps of: establishing an accelerometer combination high-order error coefficient separation test system; based on the established accelerometer combination high-order error coefficient separation test system, performing accelerometer combination high-order error coefficient separation test to obtain a test result; according to a test result, combining an accelerometer combination error model to separate various error coefficients of the accelerometer combination; and correcting the error of the accelerometer combination participating in navigation calculation according to the separated error coefficients of the accelerometer combination, thereby realizing error compensation of the inertial navigation apparent acceleration. Various error coefficients of the accelerometer combination can be separated, and the measurement precision of the accelerometer combination is improved through error compensation.

Description

technical field [0001] The invention belongs to the technical field of inertial navigation, in particular to a method and system for separating and compensating high-order error coefficients of an accelerometer combination. Background technique [0002] Inertial navigation is widely used in the fields of missiles, aircraft, ships and weapons. Its main function is to determine the position, velocity and attitude information of the carrier relative to the navigation system in real time. In the process of realizing the above-mentioned navigation functions, the accuracy of the gyroscope combination directly determines the accuracy of the attitude calculation, and the accuracy of the accelerometer combination directly determines the accuracy of the position and velocity. In order to achieve high-precision navigation, the accuracy of inertial devices must be improved from the hardware. However, it is difficult to greatly improve the accuracy of inertial devices in a short period o...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G01C25/00
CPCG01C25/005Y02T90/00
Inventor 魏宗康周姣
Owner BEIJING INST OF AEROSPACE CONTROL DEVICES
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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