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

Spatial synchronization device and synchronization method for bistatic SAR

A bi-static, spatial location technology, applied in the field of GPS positioning, can solve the problems such as the large difference in the alignment accuracy of the transceiver antenna beam, and the inability to automatically control the antenna beam pointing angle.

Active Publication Date: 2013-03-20
UNIV OF ELECTRONICS SCI & TECH OF CHINA
View PDF4 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that the system cannot automatically control the antenna beam pointing angle according to the actual spatial position of the aircraft, and the alignment accuracy of the transmitting and receiving antenna beams is greatly affected by the difference between the actual flight path and the predetermined flight path of the aircraft.

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
  • Spatial synchronization device and synchronization method for bistatic SAR
  • Spatial synchronization device and synchronization method for bistatic SAR
  • Spatial synchronization device and synchronization method for bistatic SAR

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0080] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0081] The structural diagram of the space synchronization device of the bistatic SAR of the present invention is as follows figure 2 As shown, it includes a transmitting station part and a receiving station part, wherein the transmitting station end specifically includes: a first positioning and attitude measurement system, a first antenna server, a transmitting synchronization system and a first wireless transceiver system; the receiving station end Specifically include: the second positioning and attitude measurement system, the second antenna server, the receiving synchronization system, the second wireless transceiver system and the display unit;

[0082] The first positioning and attitude measuring system is used to obtain the attitude data information and spatial position information of the carrier, and transmit the obtained information...

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 spatial synchronization device and a synchronization method for bistatic SAR (synthetic aperture radar). The device comprises a transmission station part and a receiving station part, and particularly comprises a positioning and attitude determination system, an antenna server, a transmission synchronization system, a wireless transmit-receive system, a receiving synchronization system and a display unit. According to the spatial synchronization device and the method, direction angles at which antenna beams of transmit-receive aerial carrier platforms aim at an target area are revolved and obtained by utilizing actual spatial positions of the transmit-receive aerial carrier platforms; the antenna server is utilized to accomplish aiming of the beams to allow the antenna beams of the transmit-receive platforms to aim at the target area; the spatial synchronization of the onboard bistatic SAR is achieved; a signal-to-noise ratio of a radar echo is ensured; and the precision of the spatial synchronization is improved.

Description

technical field [0001] The invention belongs to the technical field of radar signal processing, and relates to GPS positioning technology, in particular to airborne bistatic synthetic aperture radar (Synthetic Aperture Radar, SAR) space synchronization technology. Background technique [0002] Bistatic SAR is a synthetic aperture radar with a new system of receiving and transmitting separately. It has different spatial geometric coordinate relations, anti-jamming performance, concealment, and strong anti-intercept ability. Bistatic SAR includes space-borne bistatic SAR for satellite launch and satellite reception, satellite bistatic SAR for satellite launch and aircraft reception, and airborne bistatic SAR for aircraft launch and aircraft reception. [0003] The schematic diagram of the spatial structure of the airborne bistatic SAR is as follows: figure 1 As shown, due to the separation of transceivers, the airborne bistatic SAR has a new spatial geometry, which brings abo...

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 Applications(China)
IPC IPC(8): G01S13/90G01S7/02
Inventor 黄钰林罗华樊彦杜雨洺杨建宇杨海光
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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