Difference interference synthetic aperture laser three-dimensional imaging radar transceiving device

A technology of synthetic aperture laser and three-dimensional imaging, which is applied in the direction of measuring devices, instruments, and the use of re-radiation

Active Publication Date: 2014-10-22
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
View PDF3 Cites 23 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art [3L.C.Graham,Synthetic interferometer radar for topographic mapping.Proceedings of the IEEE,1974.62(6):p.763‐768.] proposed the interference scheme of microwave synthetic aperture radar, due to synthetic aperture laser imaging The rada

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
  • Difference interference synthetic aperture laser three-dimensional imaging radar transceiving device
  • Difference interference synthetic aperture laser three-dimensional imaging radar transceiving device
  • Difference interference synthetic aperture laser three-dimensional imaging radar transceiving device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0054] The present invention will be further described in detail below in conjunction with the accompanying drawings and examples, but the protection scope of the present invention should not be limited thereby.

[0055] Such as figure 1 As shown, the present invention is composed of a transmitting antenna 36, ​​a first differential receiving antenna 37, a second differential receiving antenna 38 and a beam splitter;

[0056] Such as figure 2 As shown, the first differential receiving antenna 37 is composed of the first differential receiving antenna beam expander 7, the first differential receiving antenna rectangular prism 8, the first differential receiving antenna bridge 9, the first differential receiving antenna second A bridge 10, a first differential receiving antenna, a first balanced detector 11, a first differential receiving antenna, a second balanced detector 12, a first differential receiving antenna, a first light shield 13, and a first differential receiving ...

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 difference interference synthetic aperture laser three-dimensional imaging radar transceiving device is used for transmitting and receiving synthetic aperture laser radar signal light. The difference interference synthetic aperture laser three-dimensional imaging radar transceiving device is formed by a transmitting antenna, a first difference receiving antenna and a second difference receiving antenna. The difference interference synthetic aperture laser three-dimensional imaging radar transceiving device can effectively suppress optical phase errors through difference structures of the receiving antennas and can effectively suppress phase errors caused by radar platform vibration, laser frequency instability and turbulence.

Description

technical field [0001] The invention relates to a synthetic aperture laser three-dimensional imaging radar, in particular to a differential interference synthetic aperture laser three-dimensional imaging radar transceiver. Background technique [0002] Under the premise that the real aperture does not exceed several meters, the synthetic aperture laser imaging radar is the only solution to achieve centimeter-level resolution above 1000km (see prior art 1. Robert L. Lucke, Lee J. Rickard, etc., Synthetic Aperture Ladar (SAL): Fundamental Theory, Design Equations for a Satellite System, and Laboratory Demonstration. Naval Research Laboratory, Dec. 26, 2002.). Ordinary optical remote sensing technology is limited by the size of its real aperture. It is difficult to obtain high resolution without image enhancement technology and prior knowledge during long-distance observation. Wide-bandwidth lasers can obtain extremely high resolution at long distances through synthetic apertu...

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): G01S7/481
CPCG01S7/481G01S17/90
Inventor 孙建锋张宁刘立人周煜孙志伟卢智勇
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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