Check patentability & draft patents in minutes with Patsnap Eureka AI!

Terahertz cloud measurement radar reflectivity factor calibration method based on millimeter wave radar

A reflectivity factor, millimeter wave radar technology, applied in the reflection/re-radiation of radio waves, radio wave measurement systems, measurement devices, etc., can solve the problems of large amount of engineering, high cost of human and material resources, etc., and achieve the effect of low cost

Pending Publication Date: 2021-11-16
SHANGHAI RADIO EQUIP RES INST
View PDF15 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually known targets include targets such as standard bodies and sea surfaces. It is necessary to support the test by flying a test or erecting a huge test tower outdoors. This method requires a huge amount of engineering and a high cost of manpower and material resources.

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
  • Terahertz cloud measurement radar reflectivity factor calibration method based on millimeter wave radar
  • Terahertz cloud measurement radar reflectivity factor calibration method based on millimeter wave radar
  • Terahertz cloud measurement radar reflectivity factor calibration method based on millimeter wave radar

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0047] Below figure 1 Specific embodiments of the present invention will be specifically described.

[0048] like figure 1 As shown, the present invention provides a terahertz measuring cloud radar reflectivity factor assembly method based on millimeter wave radar, comprising the steps of:

[0049] Step S1, correct the transmit power and echo power using the internal target measurement value;

[0050]Step S2, the radar reflectivity factor is calculated in spherical particles with Rayleigh scattering condition;

[0051] Step S3, the radar reflectivity factor and attenuation correction Mie scattering correction;

[0052] Step S4, the evaluation accuracy of radar reflectivity factor.

[0053] Terahertz cloud measuring radar system comprising internal calibration link, the ability to measure the power of the radar transmitter and receiver gain. Ground-based radar observation, for example, a millimeter-wave cloud radar measuring terahertz placed adjacent cloud measuring radar, while ob...

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 terahertz cloud measurement radar reflectivity factor calibration method based on a millimeter wave radar. The method comprises the following steps: S1, correcting transmitting power and echo power by adopting an internal calibration measurement value; S2, calculating a radar reflectivity factor under the conditions of spherical particles and Rayleigh scattering; S3, performing Mie scattering correction and attenuation correction on the radar reflectivity factor; and S4, evaluating the radar reflectivity factor precision. According to the method, the calibration result error is small, the reliability is high, the calibration period is shortened, and the calibration efficiency is improved.

Description

Technical field [0001] The present invention relates to the field of initiative to measure the tendon of cloud radar, and more particularly to a terahertz measuring cloud radar reflectivity factor laid-based method for millimeter-wave radar. Background technique [0002] ITU determined 237.9 ~ 238GHz to actively measure the Yunrada operating frequency band for Taihaz. Taohertz active measuring cloudrada compared to microwave radar with high strength, cloud particles Doppler speed measurement accuracy, compared to laser measuring radar with strong penetration, measuring multi-layer cloud. The terahertz active measuring cloud radar transmits electromagnetic waves to the cloud and receives echo data, obtains the cloud internal cloud particle radar reflectivity factor, and uses data inversion technology to obtain microscopic physical parameters of cloud macro, applied to numerical weather forecasting and climate model research middle. [0003] The measurement accuracy of the reflecto...

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): G01S7/40G01S13/95
CPCG01S7/40G01S13/95Y02A90/10
Inventor 尹洁珺丁霞王平王海涛肖建张凤萍陈潜魏维伟付朝伟
Owner SHANGHAI RADIO EQUIP RES INST
Features
  • R&D
  • 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