Space-borne GNSS receiver based on reconfigurable modularization

A receiver and modular technology, applied in the field of satellite navigation, can solve the problems of space adaptability and reliability that cannot meet the needs of long-term on-orbit work, design, production costs and cycle compression, and cannot form mass production capacity. Achieve the effects of low power consumption, high functional density ratio, and high reliability

Pending Publication Date: 2022-03-04
BEIJING MXTRONICS CORP +1
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, some domestic satellites have begun to use ordinary ground commercial small GNSS receivers as on-board orbit determination equipment, but the space adaptability and reliability cannot meet the long-term on-orbit work requirements
In addition, because satellite models and constell

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
  • Space-borne GNSS receiver based on reconfigurable modularization
  • Space-borne GNSS receiver based on reconfigurable modularization
  • Space-borne GNSS receiver based on reconfigurable modularization

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The present invention provides a spaceborne GNSS receiver based on reconfigurable modularization, such as figure 1 As shown, it mainly includes radio frequency module, navigation module, control module and base plate. Navigation module A and navigation module B are the same type of navigation modules, they can be cold backup for each other, and they can also work at the same time. Control module A and control module B are the same type of control modules, they can be cold backup for each other, and they can also work at the same time.

[0031] The radio frequency module, navigation module and control module all adopt standardized structural design. The size of a single radio frequency module is 40×20mm, the size of a single navigation module is 40×40mm, and the size of a single control module is 40×40mm.

[0032] The backplane is used to provide inter-module interconnection, external interface, debugging interface and basic power supply; the radio frequency module, nav...

Embodiment 2

[0054] This example Figure 5 Shown:

[0055] (1) Choose 1 radio frequency module, 2 navigation modules, 2 control modules and the base board to realize the design of the spaceborne GNSS receiver.

[0056] (2) The radio frequency module supports three-way GNSS antenna input, and internally selects filters, low-noise amplifiers, three-in-one combiners, and one-to-two power dividers to output two-way radio frequency signals.

[0057] (3) Two navigation modules and two control modules are respectively selected, and the design in Embodiment 1 is followed, and dual-computer cold backup is adopted to improve space applicability and reliability.

[0058] (4) The radio frequency module, navigation module and control module all adopt standardized structure design and pin definition. The size of a single radio frequency module is 40×20mm, the size of a single navigation module is 40×40mm, and the size of a single control module is 40×40mm.

[0059] (5) The bottom board follows the des...

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

A satellite-borne GNSS receiver based on reconfigurable modularization adopts modular design and comprises a radio frequency module, a navigation module, a control module and a bottom plate. Wherein the radio frequency module, the navigation module and the control module adopt standardized structural design, the modules can be reconfigured and combined, multi-antenna input and multi-machine redundant backup can be supported, and the system is suitable for satellite-borne scenes. The radio frequency module receives multipath antenna GNSS radio frequency signal input and completes amplification, combination and power division processing. The navigation module captures, tracks and positions GNSS signals based on an integrated navigation chip; the control module completes communication with the on-satellite subsystem, control instruction receiving and execution and the like based on the main control CPU; and the bottom plate is used for providing interconnection among modules, external interfaces and basic power supply. The method is suitable for complex satellite-borne scenes, has the reconfigurable characteristic, and has flexibility, universality and reliability, the design cost can be greatly reduced, and batch production capacity is achieved.

Description

technical field [0001] The invention relates to a space-borne GNSS receiver based on reconfigurable modularization, which belongs to the field of satellite navigation. Background technique [0002] With the rapid development of commercial aerospace, micro-satellites have developed rapidly in the fields of broadband communication, electronic investigation, remote sensing observation and other fields by virtue of their small size, strong mobility, fast construction speed, and low-orbit operation, and have shown a trend of large-scale networking , The construction demand is large. As one of the core components, the satellite-borne GNSS receiver provides high-precision position, velocity and time information for the satellite. Different from the ground scene, the space-borne scene is complex, the satellite moves fast and has different attitude adjustments, the signal Doppler frequency shift is large, and the visible star switching speed is fast, etc., all of which put forward 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): G01S19/37
CPCG01S19/37
Inventor 倪枫陈雷李文杰刘肖姬薛钰郭权李楠吕冰
Owner BEIJING MXTRONICS CORP
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