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

Working wave position decision method for satellite-loaded synthetic aperture radar

A technology of synthetic aperture radar and judgment method, which is applied in the field of radar to achieve the effect of flexible wave position classification and simple algorithm

Inactive Publication Date: 2009-06-24
BEIHANG UNIV
View PDF0 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above approach has great defects, so it is necessary to obtain the direction of the radar antenna beam from another way

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
  • Working wave position decision method for satellite-loaded synthetic aperture radar
  • Working wave position decision method for satellite-loaded synthetic aperture radar
  • Working wave position decision method for satellite-loaded synthetic aperture radar

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0045] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0046] A kind of judging method of spaceborne synthetic aperture radar (SAR) working wave position of the present invention, because this method needs to utilize all possible wave position tables of the other side's spaceborne synthetic aperture radar work, generally should be all the other side's spaceborne synthetic aperture radar The nominal wave level is known.

[0047] Such as figure 1 As shown, the following steps are included. The processing in this embodiment is performed on a processor or a PC connected to the receiver, and the Radarsat1 satellite is used as an example for illustration.

[0048] Part I is to determine the input parameters, including orbital information, target wave position, signal parameters and scene information.

[0049] Step 1: Determine the input parameters. The parameters that need to be input are satellite orbit parameters,...

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 relates to a working harmonic displacement judging method of a space-borne synthetic aperture radar. The judging method comprises the following steps: calculating the leading-edge and trailing-edge echo time of a transmitting signal and a sub stellar point interference fringe through parameters input and further calculating the slant range between a corresponding radar and an interference area according to results obtained and an visual angle of the interference area relative to the corresponding radar; and determining the congregation of pulse recurrence frequency and further judging the working harmonic displacement of a radar antenna and verifying judging results. The invention can complete the tasks by using a receiver without the arrangement mode of a plurality of traditional receivers, thereby saving labors and materials and providing essential information for identifying the reconnaissance intention of a synthetic aperture radar satellite of adverse party and organizing the effective deceiving interference of the synthetic aperture radar satellite of own party.

Description

technical field [0001] The invention relates to the field of radar technology, in particular to synthetic aperture radar electronic warfare technology. Background technique [0002] Spaceborne SAR is an all-weather and all-time microwave side-looking imaging radar. It has been very mature since it was invented in the 1950s. At present, led by the United States, the European Space Agency, Japan, Russia and Canada have launched their own SAR satellites one after another. As the imaging resolution of SAR becomes higher and higher, it plays an increasingly important role in military reconnaissance and disaster monitoring. Research on electronic warfare (EW) for spaceborne SAR systems has been carried out at home and abroad. EW consists of three components: Electronic Warfare Support Measures (ESM), Electronic Countermeasures (ECM) and Electronic Countermeasures (ECCM). If you want to achieve the effect of implementing electronic countermeasures against the spaceborne SAR syst...

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): G01S7/02G01S7/36G01S13/90
Inventor 李然李林琳李景文
Owner BEIHANG UNIV
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com