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Distributed POS (position and orientation system) transfer alignment modeling method and device of bending deformation measuring network

A transfer alignment and distributed technology, applied in the field of measurement, can solve the problem that the flexible lever arm is difficult to accurately model, transfer alignment measurement information, and inaccurate.

Active Publication Date: 2018-08-14
BEIHANG UNIV
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Problems solved by technology

[0005] In order to solve the problem of inaccurate transfer alignment measurement information caused by the difficulty of accurate modeling of distributed POS flexible rod arms in the prior art, the embodiment of the present invention provides a distributed POS transfer alignment construction of a deflection deformation measurement network. Compared with the existing technology, the method can improve the transfer alignment accuracy of distributed POS

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  • Distributed POS (position and orientation system) transfer alignment modeling method and device of bending deformation measuring network
  • Distributed POS (position and orientation system) transfer alignment modeling method and device of bending deformation measuring network
  • Distributed POS (position and orientation system) transfer alignment modeling method and device of bending deformation measuring network

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Embodiment Construction

[0045] The present application will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0046] In the following introduction, the terms "first" and "second" are only used for the purpose of description, and should not be understood as indicating or implying relative importance. The following description provides multiple embodiments of the present invention, and different embodiments can be replaced or combined in combination, so this application can also be considered to include all possible combinations of the same and / or different embodiments described. Thus, if one embodiment contains features A, B, C, and another embodiment contains features B, D, then the application should also be considered to include all other possible combinations containing one or more of A, B, C, D Although this embodiment may not be clearly written in the following content.

[0047] The invention relates to a distributed POS transfer alignment mod...

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Abstract

The invention discloses a distributed POS (position and orientation system) transfer alignment modeling method and a distributed POS transfer alignment modeling device of a bending deformation measuring network. The method comprises the following steps: establishing a six-degree-of-freedom bending deformation measuring network, and dispersing a flexible rod arm into a plurality of rod arm micro-sections with length not more than 10 cm according to a strain gradient of bending deformation of the distributed POS flexible rod arm; sticking six fiber grating sensors on the surface of each rod armmicro-section, calculating a three-dimensional deformation angle and three-dimensional deformation displacement under a main system carrier coordinate system by adopting a six-degree-of-freedom bending deformation solving method, and providing measuring information for distributed POS transfer alignment; and establishing a distributed POS attitude measuring equation based on bending deformation attitude compensation, and a distributed POS position measuring equation based on bending deformation position compensation so as to establish a transfer alignment system model. The invention also discloses the distributed POS transfer alignment modeling device of the bending deformation measuring network.

Description

technical field [0001] The invention relates to the field of measurement technology, in particular to a distributed POS transfer alignment modeling method and device for a deflection deformation measurement network. Background technique [0002] The Distributed Position and Orientation System (DPOS) is an important device for airborne high-resolution earth observation systems to obtain motion parameters such as multi-node positions, speeds, and attitudes. Its main components include a high-precision inertial / The satellite combined measurement main system, multiple low-precision inertial measurement unit subsystems (Inertial Measurement Unit, IMU), POS computer (POS Computer System, PCS), and post-processing software are composed. Among them, the main system is generally installed in the aircraft cabin, and the subsystems are installed as much as possible at the imaging center of the remote sensing load, and are generally distributed and installed in different positions of t...

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Application Information

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IPC IPC(8): G01C21/20G01C21/18
CPCG01C21/18G01C21/20
Inventor 李建利王云刘刚卢兆兴房建成茅云恺顾宾
Owner BEIHANG UNIV
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