Unlock instant, AI-driven research and patent intelligence for your innovation.

Imaging Method of Airborne Ice-penetrating Radar

An imaging method and ice detection radar technology, applied in the radar field, can solve the problems of low resolution and appearance of airborne ice detection radar, and achieve the effect of weakening interference and good robustness

Active Publication Date: 2016-03-02
INST OF ELECTRONICS CHINESE ACAD OF SCI
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the phase history of the ice surface echo (non-looking down) across the track is consistent with that of the ice bottom echo (looking down), if the cross-track echo to the ice surface is not eliminated, the ice bottom echo will be Unable to show up in radar images, resulting in low resolution of current airborne ice-penetrating radars

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
  • Imaging Method of Airborne Ice-penetrating Radar
  • Imaging Method of Airborne Ice-penetrating Radar
  • Imaging Method of Airborne Ice-penetrating Radar

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be noted that, in the drawings or descriptions of the specification, similar or identical parts all use the same figure numbers. Implementations not shown or described in the accompanying drawings are forms known to those of ordinary skill in the art. Additionally, while illustrations of parameters including particular values ​​may be provided herein, it should be understood that the parameters need not be exactly equal to the corresponding values, but rather may approximate the corresponding values ​​within acceptable error margins or design constraints.

[0018] In the ice-penetrating radar imaging method of the present invention, first in the azimuth direction, the method of synthetic aperture is used to focus ...

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 provides an onboard ice-penetrating radar imaging method. The onboard ice-penetrating radar imaging method comprises the following steps of: focusing the data of each channel by means of a synthetic aperture in an azimuth direction at first, and then carrying out MPQP-MVDR beam forming on a plurality of channels in a cross-track direction, and then imaging, thus effectively suppressing the surface clutters of an ice layer in the cross-track direction to obtain the radar image of the bottom of the ice layer. In addition, according to the method, during the beam forming process, the null in a beam interference direction can be controlled to be horizontal and the width of the null in the interference direction can be extended by means of multi-parameter optimization, and due to the good robustness, the interference of the surface clutters of the ice layer in the cross-track direction on the return part of the bottom of the ice layer can be effectively weakened.

Description

technical field [0001] The invention relates to the technical field of radar, in particular to an imaging method of an airborne ice-penetrating radar. Background technique [0002] Airborne glacier detection radar is mainly used in the depth detection of polar glaciers. Polar ice storage and ice flow have an important impact on ecosystems such as global water balance and carbon cycle. In the past two decades, with people's concern about global warming, people have focused on the measurement and research of polar glaciers. Among them, the most influential one is the "Operation Ice Bridge" organized by NASA. Many scientific research institutions at home and abroad have detected the thickness of polar glaciers, representative ones are the University of Kansas in the United States and the Shanghai Polar Research Center. [0003] Ground-based ice-penetrating radar is limited in speed and breadth because it measures close to the ground. Airborne ice-penetrating radar can quickl...

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 Patents(China)
IPC IPC(8): G01S13/90
CPCG01S7/414G01S13/08G01S13/90G01S13/9027
Inventor 张晓娟王友成饶丽婷吴超崔帅王辰
Owner INST OF ELECTRONICS CHINESE ACAD OF SCI