Satellite navigation anti-interference and attitude measurement method based on the array antenna

A satellite navigation and array antenna technology, applied in the field of satellite navigation, can solve problems such as attitude measurement accuracy dependence, attitude measurement algorithm failure, and failure to work normally

Inactive Publication Date: 2018-09-11
中国航天电子技术研究院
View PDF30 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the accuracy of satellite navigation attitude measurement depends on the carrier phase measurement of the navigation sign

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
  • Satellite navigation anti-interference and attitude measurement method based on the array antenna
  • Satellite navigation anti-interference and attitude measurement method based on the array antenna
  • Satellite navigation anti-interference and attitude measurement method based on the array antenna

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0052] Example 1

[0053] This embodiment provides an anti-jamming method for satellite navigation based on an array antenna. The method includes the following steps:

[0054] 1) Set up a satellite navigation array antenna for receiving satellite navigation radio frequency signals;

[0055] The satellite navigation array antenna is an antenna array with M antenna array elements arranged in a specific array, and is used to receive satellite navigation radio frequency signals. In this embodiment, M=4 or M=7, and each antenna element can receive satellite navigation signals of GPS L1, BDS B1, BDS B3 and other frequency points.

[0056] Such as figure 2 As shown, when the satellite navigation array antenna includes 4 antenna array elements, the 4 antenna array elements are arranged in a Y-shape, that is, with one antenna array element as the center, the other three antennas are evenly distributed in The center antenna array element is surrounded by an equilateral triangle, and the dista...

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 mainly belongs to the technical field of satellite navigation, and particularly relates to a method for realizing satellite navigation anti-interference and attitude measurement based onan array antenna. The attitude measurement method comprises the following steps: a satellite navigation array antenna is arranged to receive a satellite navigation radio frequency signal; each antenna array element in the satellite navigation array antenna corresponds to one radio frequency front end channel, the radio frequency front-end channel processes the radio-frequency signals received bythe antenna array element to generate a digital baseband signal; an anti-interference processing module is used for carrying out self-adaptive array signal processing on the digital baseband signals,and the interference is eliminated to form a beam null notch and interference is eliminated; the carrier phase position of the satellite navigation signal received by each antenna array element is recovered, and the attitude of the array antenna is calculated through an array antenna attitude measurement model. According to the method, the array antenna is used for carrying out anti-interference processing and attitude measurement operation on the received signals, and the satellite navigation attitude measurement function can be realized in an interference environment.

Description

technical field [0001] The invention mainly belongs to the technical field of satellite navigation, and in particular relates to a method for realizing anti-interference and attitude measurement of satellite navigation based on an array antenna. Background technique [0002] The global satellite navigation system (GNSS) mainly includes the GPS system of the United States, the GLONASS system of Russia, the Galileo system of Europe, and the Beidou satellite navigation system (BDS) of China. Among them, my country's Beidou satellite navigation system has completed the construction of Beidou No. 1 and Beidou No. 2 systems, providing satellite navigation services for my country's surrounding areas and the Asia-Pacific region. The Beidou No. 3 system is under construction and is expected to serve global users around 2020. Provide service signal. Since the navigation satellites are very far away from the earth and the satellite transmission power is limited, the navigation signals ...

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): G01S19/21G01S19/37
CPCG01S19/21G01S19/37
Inventor 黄丙胜卜春光刘伟王帅杨红喜
Owner 中国航天电子技术研究院
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