Method for acquiring high-precision atmosphere data of aircraft flying across atmospheric layer

A technology of atmospheric data and acquisition methods, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve the problems that embedded atmospheric technology has not been developed, and achieve the effect of improving the accuracy of pressure measurement

Active Publication Date: 2015-01-28
CHINA ACAD OF LAUNCH VEHICLE TECH
View PDF3 Cites 30 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Atmospheric data research has been carried out in similar aircraft at home and abroad. Due to the constraints of the development of domestic high-speed aircraft, the research on atmospheric data systems is still dominated by air data systems represented by pitot tubes and differential pressure sensors used in low-speed aviation aircraft. At the same time, domestic experts have also condu

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
  • Method for acquiring high-precision atmosphere data of aircraft flying across atmospheric layer
  • Method for acquiring high-precision atmosphere data of aircraft flying across atmospheric layer
  • Method for acquiring high-precision atmosphere data of aircraft flying across atmospheric layer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] The basic idea of ​​the present invention is: figure 1 As shown, a method for acquiring high-precision atmospheric data for a transatmospheric flying vehicle is provided. First, by establishing a three-dimensional coordinate system, the vertex of the nose cone of the aircraft is defined as the origin of the coordinate axis, the horizontal line passing through the origin is the X axis, and the flying direction of the aircraft is right. The side is defined as the positive direction of the X axis, the positive direction of the Y axis is perpendicular to the X axis through the origin, and the Z axis is obtained by the right-hand rule; the angle of attack sensor, total temperature sensor and sideslip angle are set at the nose of the aircraft Sensor; collect the voltage signal of the aircraft's angle of attack through the set angle of attack sensor, the total temperature sensor collects the total temperature of the aircraft, and the sideslip angle sensor collects the angle data...

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 a method for acquiring high-precision atmosphere data of an aircraft flying across an atmospheric layer. The method is based on conventional airspeed head measuring techniques and embedded atmosphere measuring measures, and atmosphere test data meeting the requirements of the aircraft flying across the atmospheric layer are accurately and rapidly acquired through system model creation, redundancy design, temperature compensation design, data fusion and the like. A redundancy design technique based on arrangement of pressure measuring points of multipoint-pressure-measurement pressure sensors and an effectiveness selection strategy of a three-point-method calculation model are mainly adopted, and reliability in data acquisition during breakdown of pressure taps is realized; a temperature compensation design technique is provided, so that the problem of pressure measurement change caused by air specific heat change at a high temperature is solved, and pressure measurement precision is improved; atmosphere data measuring measures based on different parameter measurement modes are adopted, data fusion is performed on measured data, and input is provided to a solution model of trans-atmospheric atmosphere data.

Description

Technical field [0001] The invention relates to a method for acquiring high-precision atmospheric data of a transatmospheric flying aircraft, which belongs to the technical field of aircraft navigation and control. Background technique [0002] Accurate measurement of aircraft air data plays an important role in flight control, measurement and safety. Air data research has been carried out in similar aircraft at home and abroad. Due to the development of domestic high-speed aircraft, the research on air data system is still mainly based on the air data system represented by the airspeed tube and differential pressure sensor used in the aviation low-speed aircraft. At the same time, domestic experts have also conducted research on embedded atmospheric technology, mainly from the structural layout of the system, calculation algorithm, test system design, compensation algorithm, simulation analysis and error correction algorithm, etc., and have made certain progress. However, the e...

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): G06F19/00
Inventor 李金龙高祥武曾贵明梁君欧连军刘建妥张德智陈朝霞张宏江曾星星
Owner CHINA ACAD OF LAUNCH VEHICLE TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap