Calculation method and application of volume scan mode based on networked weather radar coverage

A weather radar and volume scanning technology, which can be used in the application of re-radiation, ICT adaptation, climate sustainability, etc., can solve problems such as affecting detection accuracy, and achieve the effect of improving simulation accuracy and efficiency, and improving construction accuracy and efficiency.

Active Publication Date: 2021-08-10
上海市气象信息与技术支持中心 +1
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Problems solved by technology

With the introduction of the concept of "Urban Refined Management" and the implementation of the "Meteorological Disaster Prevention and Mitigation First Line of Defense" policy, the demand for fine observations over cities and evaluation of weather radar coverage areas has become increasingly prominent, which is highly dependent on manual operations The scanning strategy obviously affects the detection accuracy to some extent

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  • Calculation method and application of volume scan mode based on networked weather radar coverage
  • Calculation method and application of volume scan mode based on networked weather radar coverage
  • Calculation method and application of volume scan mode based on networked weather radar coverage

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Embodiment

[0052] The position and volume scanning mode of the networked weather radar affect the coverage and landing area of ​​the three-dimensional space scale, and affect the acquisition of space atmospheric scanning information. At present, the basic scanning methods of radar VCP are mainly divided into two types: clear sky mode and precipitation mode, usually including 9 volume scanning modes, namely: VCP32, VCP31, VCP21, VCP11, VCP12, VCP121, VCP211, VCP212 and VCP221, among which, The scanning mechanisms of VCP211, VCP221, and VCP212 correspond to those of VCP11, VCP21, and VCP12 respectively. The difference is that the phase encoding algorithm is used on the two elevation angles of the lower layer to improve the detection of unambiguous speed.

[0053] For the clear sky mode, there are mainly two types, VCP31 and VCP32, including 5 elevation angles, and the scanning time is about 10 minutes. The pulse width of VCP31 is 4.7us, and the PRF is about 322Hz; while the pulse width of ...

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Abstract

The invention discloses a volume scanning mode calculation method and application based on a networked weather radar coverage area, and relates to the technical field of networked radars. The method comprises the steps of: constructing an initial weather radar network three-dimensional grid point field based on the networked weather radar data in the target area, identifying grid point coverage information in the three-dimensional grid point field; determining the blind area, identifying the boundary of the blind area; collecting to be added Radar data, for each radar to be added, configure the volume scan mode parameters of the radar based on blind spot recognition, and calculate the minimum azimuth angle, maximum azimuth angle and scanning range between the set heights and then fuse to obtain the final sector scan parameters. The present invention can identify the blind area based on the radar coverage information, combine the position parameters of the weather radar to be added and other information to adaptively configure the parameters of the volume scan mode, and introduce the radar for the user to perform blind supplementary data fusion and radar cooperative network layout. provide a basis for decision-making.

Description

technical field [0001] The invention relates to the technical field of networked radars, in particular to a calculation method and application of volume scan mode based on the coverage area of ​​networked weather radars. Background technique [0002] Weather radar plays a very important role in the modern comprehensive meteorological observation system. It has a good ability to monitor large and medium-scale weather systems and provides intuitive data for short-term weather forecasts. With the continuous improvement of weather radar performance, the number of radar units erected gradually increased, forming a weather radar network. [0003] The geometric structure and information fusion of networked weather radars have the flexibility to adapt to various weather radar scenarios and applications, and become one of the research hotspots in the field of weather radars today. Networked weather radar can increase the dimension and confidence of measurement, improve the fault tol...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S13/95G01S7/02
CPCG01S7/02G01S13/95Y02A90/10
Inventor 尹春光戴建华马雷鸣管理陈浩君薛昊
Owner 上海市气象信息与技术支持中心
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