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

Coherent Doppler wind lidar, method and storage medium

A technology of Doppler wind measurement and laser radar, which is applied in the field of Doppler laser wind measurement, can solve the problems of increasing the cost of wind measurement laser radar wind measurement, etc., and achieve the effect of reducing costs and reducing component accuracy requirements

Pending Publication Date: 2021-02-09
BEIJING INST OF TECH ZHUHAI CAMPUS
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the common path design, the implementation of many important measurement methods to reduce the noise of the light source is limited, and a low-noise light source must be used, such as a photonic crystal laser with narrow linewidth and low noise, which increases the wind measurement cost of the wind lidar

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
  • Coherent Doppler wind lidar, method and storage medium
  • Coherent Doppler wind lidar, method and storage medium
  • Coherent Doppler wind lidar, method and storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] The concept, specific structure and technical effects of the present application will be clearly and completely described below in conjunction with the embodiments and drawings, so as to fully understand the purpose, scheme and effect of the present application.

[0030] The present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. For the step numbers in the following embodiments, it is only set for the convenience of illustration and description, and the order between the steps is not limited in any way. The execution order of each step in the embodiments can be adapted according to the understanding of those skilled in the art sexual adjustment. In addition, for several described in the following embodiments, it is represented as at least one.

[0031] It should be noted that, unless otherwise specified, when a feature is called "fixed" or "connected" to another feature, it can be directly f...

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 coherent Doppler wind lidar, a coherent Doppler wind lidar method and a storage medium, and the coherent Doppler wind lidar comprises a laser which is used for emitting laser; an optical fiber splitter which is used for separating the laser to obtain local oscillation reference light and measurement light; an optical fiber connector which is used for transmitting the measuring light to the focusing lens; a focusing lens which is used for focusing the measuring light at a measuring point to obtain reflected light; a circulator which is used for transmitting reflected light to the detector; and a detector which is used for generating a beat frequency signal according to the local oscillator reference light and the reflected light. Compared with the existing wind measurement laser radar, the wind measurement laser radar provided by the embodiment of the invention has the advantages that the element precision requirement of the wind measurement laser radar is reduced by adopting a different-path propagation mode of the local oscillation reference light and the measurement light, so the cost of the wind measurement laser radar is reduced. The method can be widely applied to the technical field of Doppler laser wind measurement.

Description

technical field [0001] The present application relates to the technical field of Doppler laser wind measurement, in particular to a coherent Doppler wind measurement laser radar, a method and a storage medium. Background technique [0002] Wind lidar technology uses the Doppler effect to measure wind speed by measuring the frequency shift of reflected light. Generally, the reflected light scattered by the suspended matter in the air and the strong local oscillator reference light drawn from the light source are mixed and interfered on the detector. frequency spectrum to achieve. [0003] At present, the optical fiber co-channel design is generally adopted, and the reference light of the local oscillator and the reflected light pass through the same optical fiber path, which overcomes the influence of the birefringence of the ordinary fiber on the polarization state of the light, and ensures the consistency of the polarization state of the reflected light and the reference l...

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 Applications(China)
IPC IPC(8): G01S17/95G01S7/481
CPCG01S17/95G01S7/481Y02A90/10
Inventor 蔡波苏秉华任明春盛一成
Owner BEIJING INST OF TECH ZHUHAI CAMPUS
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