A Wind Profiler Radar Pulse Emission Coding Method Using Non-Uniform Fractal Technology

A wind profiler radar, pulse emission technology, applied in the direction of utilizing re-radiation, reflection/re-radiation of radio waves, radio wave measurement systems, etc. Not applicable, etc.

Active Publication Date: 2020-11-17
南京信大气象科学技术研究院有限公司
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Some methods have been proposed internationally to improve the distance resolution when transmitting wide pulses, mainly using linear statistics to invert and estimate the distance in the amplitude domain and the analysis method of Doppler expansion targets, but for diffuse targets such as atmospheric turbulence not applicable
Some people use frequency domain interferometry (FDI) to improve the distance resolution of wind profiler radar, but this method requires that the scattering target itself is a very thin layer when it is in the radar scattering volume, and it is difficult to meet the wind shear detection requirements of wind profiler radar. needs

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
  • A Wind Profiler Radar Pulse Emission Coding Method Using Non-Uniform Fractal Technology
  • A Wind Profiler Radar Pulse Emission Coding Method Using Non-Uniform Fractal Technology
  • A Wind Profiler Radar Pulse Emission Coding Method Using Non-Uniform Fractal Technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0039] The implementation of the present invention will be illustrated by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0040] All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and / or steps.

[0041] Any feature disclosed in this specification, unless specifically stated, can be replaced by other alternative features that are equivalent or have similar purposes. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.

[0042] The present invention will be further described below in conjunction with the accompanying drawings.

[0043] Such as figure 1 shown.

[0044] The transmit pulse consists of multiple symbols, and the number of symbols is . The...

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 wind profile radar pulse emission coding method adopting a non-uniform fractal technology, and belongs to the technical field of radar measurement. The wind profile radar pulse emission coding method adopting the non-uniform fractal technology comprises the following steps: 1, a power pulse strategy of wind profile radar emission non-uniform intervals is formulated, and the strategy is determined through using an exhaustion technology to determine a pulse emission strategy under a low mode, determining a pulse emission strategy in a high mode by adopting an optimization search technology, and searching an optimal pulse emission combination by adopting a simulated annealing technology; and 2, transmitting power pulses with non-uniform intervals according to the strategy determined in step 1. The method has the following beneficial effects: the distance resolution measured by a phase-coded radar can be improved while the narrow transmitting bandwidth is kept.

Description

technical field [0001] The invention relates to the technical field of radar measurement, in particular to a wind profile radar pulse emission encoding method using non-uniform fractal technology. Background technique [0002] Wind profiler radar measures atmospheric turbulence and obtains wind speed and wind direction. It is a very powerful detection tool and plays an important role in weather forecasting. When a network of multiple wind profiler radars operates cooperatively, it will play a greater role. my country is building a wind profiler radar network. According to Resolution COM5-5 of the World Radiocommunication Conference 1997 and footnotes S5.162A and S5.291A, the frequency bands allocated for use by wind profiler radars are: 46-68 MHz; 440-450 MHz; 470-494 MHz; 904 -928 MHz; 1270-1295 MHz; 1300-1375 MHz. The working frequency bands of wind profiler radar determined by China Meteorological Administration are 1270-1295 MHz and 1300-1375 MHz. [0003] Generally ...

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): G01S13/95G01S7/282
CPCG01S7/282G01S13/95Y02A90/10
Inventor 李忱张越
Owner 南京信大气象科学技术研究院有限公司
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