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An Airborne Distributed Position and Attitude Measurement System

A measurement system and distributed technology, applied in the directions of radio wave measurement system, satellite radio beacon positioning system, measurement device, etc. Effect

Active Publication Date: 2018-04-06
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The problem solved by the technology of the present invention is: to overcome the deficiency that the existing airborne single POS measurement system cannot perform multi-node measurement, and to provide an airborne distributed position and attitude measurement system, which can output multi-node motion information in real time at high frequency

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  • An Airborne Distributed Position and Attitude Measurement System
  • An Airborne Distributed Position and Attitude Measurement System
  • An Airborne Distributed Position and Attitude Measurement System

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Embodiment Construction

[0016] Such as figure 1 As shown, the present invention includes a distributed PCS, three IMUs and a differential GPS device. Among them, the distributed PCS is the core of the airborne distributed POS. It receives the 422 data and differential GPS data sent by the three IMUs in parallel, and provides 28V DC regulated power for the three IMUs and the RTK airborne radio station at the same time. The load and monitoring computer provide the navigation information of the three nodes; the three IMUs provide the distributed PCS with the angular velocity and acceleration of the three nodes in parallel, and send them to the distributed motherboard module of the distributed PCS in the form of 422, and then send them to the distributed PCS PCS distributed data processing computer module to complete strapdown calculation; differential GPS equipment includes ground reference station equipment and airborne rover equipment, ground reference station equipment consists of GPS reference stati...

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Abstract

The invention relates to an airborne distributed position and orientation measurement system. The system comprises three inert measurement units (IMU), a distributed processing computer system (distributed PCS) and a set of differential GPS equipment, wherein the three IMU are respectively used for measuring the linear motion and angular motion of three different nodes and transmitting the linear motion and the angular motion to a distributed PCS in a 422 form, and the set of differential GPS equipment is used for outputting differential GPS to the distributed PCS in real time; then, the distributed PCS is used for completing parallel receiving, parallel processing, parallel saving and parallel transmission on data of the three IMU and the differential GPS; and finally, the distributed position and orientation system is used for outputting position and orientation information of three nodes in real time. The distributed position and orientation measurement system is applicable to high-precision distributed inert measurement, navigation and combined navigation systems.

Description

technical field [0001] The invention relates to the design and realization of an airborne distributed POS (Position and Orientation System, position and attitude measurement system), which can be applied to multi-node inertial navigation, inertial / GPS (Global PositionSystem, global positioning system) combined navigation system and distributed type node measurement. Background technique [0002] High-precision POS can provide high-frequency, high-precision time and space reference information for high-resolution aerial remote sensing systems, and improve imaging accuracy and efficiency through motion error compensation. With the increasing demand for high-resolution imaging in aerial remote sensing, new high-efficiency multi-task imaging payload joint imaging technology, long-baseline microwave payload interferometry and array technology have gradually become effective means to improve imaging efficiency and resolution. For the flexible long-baseline one-main-two-substance ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C21/16G01S19/43G01S19/47G01S19/53G01S19/54
CPCG01C21/165G01S19/43G01S19/47G01S19/53G01S19/54
Inventor 刘刚叶文房建成李建利朱庄生卢兆兴顾宾
Owner BEIHANG UNIV