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

A method of inter-satellite distance measurement based on on-board quantum light source and reflector

A technology of inter-satellite ranging and mirrors, which is applied in the field of satellite autonomous navigation, can solve the problems of limiting measurement accuracy and safety, and achieve the effects of high measurement accuracy and high signal transmission security

Active Publication Date: 2015-12-30
BEIJING INST OF CONTROL ENG
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the development of traditional radio ranging methods based on classical theories has an insurmountable limit, which limits the further improvement of measurement accuracy and safety.

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
  • A method of inter-satellite distance measurement based on on-board quantum light source and reflector
  • A method of inter-satellite distance measurement based on on-board quantum light source and reflector
  • A method of inter-satellite distance measurement based on on-board quantum light source and reflector

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] The specific embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0024] The current constellation learns that autonomous navigation mainly relies on methods based on inter-satellite distance measurement. For example, the autonomous navigation system equipped on GPS satellites uses radio ranging information between satellites for position correction, which can be used in the case of interruption of communication with the ground control center. Work independently for a period of time. In order to solve the problems of the traditional inter-satellite ranging method in terms of measurement accuracy and safety, the present invention proposes an inter-satellite ranging method based on a quantum light source and a reflector on the satellite, which achieves high precision through the new signal form of entangled state photons High security requirements. On this basis, the application of the absolute orbit...

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 provides an inter-satellite ranging method based on quantum light sources on satellites and a reflector. The quantum light sources on the satellites and a quantum measuring device are arranged on a user satellite and used for generating and emitting entangled-state photon pulse signals, the reflector and a pointing mechanism are arranged on a beacon satellite and used for reflecting the received entangled-state photon pulse signals to the user satellite, and the user satellite measures the high-precision distance between the user satellite and the beacon satellite by measuring the difference of arrival times of the emitted entangled-state photon pulse signals and the reflected entangled-state photon pulse signals. By means of the method, constellation satellite autonomous navigation tasks based on measurement of inter-satellite distances can be achieved, the degree of dependence of the satellites on the ground measurement and control can be reduced, and the autonomous viability of a constellation system under emergency conditions can be enhanced.

Description

Technical field [0001] The invention relates to an inter-satellite ranging method based on a quantum light source and a reflector on a satellite, and belongs to the technical field of satellite autonomous navigation. Background technique [0002] With the increasing number of space missions and the widespread economic and military application of satellite constellation systems, the national economy and national defense have put forward higher requirements for spacecraft navigation and control systems, and improving the autonomous navigation capabilities of constellation satellites has become an urgent need It is the development trend of the new generation of satellite constellation systems to achieve full or partial autonomy. The realization of constellation satellite autonomous navigation can not only reduce the demand for ground manpower, material resources, and equipment, and reduce the cost of space programs, but more importantly, when the information transmission between the...

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
Patent Type & Authority Patents(China)
IPC IPC(8): G01S17/08
CPCG01S7/4865G01S17/08
Inventor 熊凯魏春岭何英姿
Owner BEIJING INST OF CONTROL ENG
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