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Method and device for eliminating sidelobe echoes of millimeter wave cloud radar

A sidelobe echo and millimeter wave technology, applied in the radar field, can solve problems such as data quality problems and achieve the effect of improving quality

Active Publication Date: 2020-10-30
福建省气象信息中心 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above-mentioned problems in the prior art, the present invention provides a method and device for eliminating sidelobe echoes of millimeter-wave cloud radar, which can remove sidelobe echoes in radar base data to solve the problems caused by distance sidelobes of millimeter-wave radars. data quality issues

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  • Method and device for eliminating sidelobe echoes of millimeter wave cloud radar
  • Method and device for eliminating sidelobe echoes of millimeter wave cloud radar
  • Method and device for eliminating sidelobe echoes of millimeter wave cloud radar

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Embodiment 1

[0028] Please refer to figure 1 , a method for eliminating millimeter-wave cloud radar sidelobe echoes, comprising steps:

[0029] S1. Obtain key parameters of radar detection mode and radar basic data;

[0030] The key parameters of the radar detection mode include detection blind zone N, pulse width τ and pulse compression ratio Ratio, and the radar basic data include reflectivity factor, radial velocity, spectral width and linear depolarization ratio, and the radar basic data also include The direction number i and the distance library number j.

[0031] S2. Marking sidelobe echoes in the radar base data according to preset rules and key parameters of the radar detection mode;

[0032] Step S2 includes:

[0033] S21. Mark the first sidelobe echo in the radar base data according to a preset first rule;

[0034] Step S21 is specifically:

[0035] S211. According to the transitional principle of spatial continuity and change of cloud, precipitation and meteorological echo...

Embodiment 2

[0048] This embodiment will further illustrate how the above-mentioned method of eliminating the sidelobe echo of the millimeter-wave cloud radar in the present invention is realized in combination with specific application scenarios:

[0049] S1. Obtain key parameters of radar detection mode and radar basic data;

[0050] The key parameters of the radar detection mode include detection blind zone N, pulse width τ and pulse compression ratio Ratio, and the radar basic data include reflectivity factor, radial velocity, spectral width and linear depolarization ratio, and the radar basic data also include The direction number i and the distance library number j.

[0051] S2. Marking sidelobe echoes in the radar base data according to preset rules and key parameters of the radar detection mode;

[0052] Step S2 includes:

[0053] S21. Mark the first sidelobe echo in the radar base data according to a preset first rule;

[0054] Step S21 is specifically:

[0055] S211. Accordin...

Embodiment 3

[0076] Please refer to figure 2 , a device 1 for eliminating millimeter-wave cloud radar sidelobe echoes, comprising a memory 2, a processor 3, and a computer program stored on the memory 2 and operable on the processor 3, and the processor 3 executes the program Each step in the first embodiment is realized at the same time.

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Abstract

The invention provides a method and device for eliminating sidelobe echoes of a millimeter wave cloud radar. The method comprises the steps that radar detection mode key parameters and radar base dataare acquired; sidelobe echoes in the radar base data are marked according to a preset rule and radar detection mode key parameters; sidelobe echoes in the radar base data are removed to acquire corrected radar base data. The method is advantaged in that sidelobe echoes in the radar base data can be eliminated, a problem of cloud-precipitation meteorological echo pollution caused by distance sidelobe echoes caused by millimeter wave cloud radar wide pulse detection is solved, the quality of radar detection data can be effectively improved, and an important data basis is provided for application of the millimeter wave cloud radar in the meteorological field and the civil aviation field.

Description

technical field [0001] The invention relates to the technical field of radar, in particular to a method and device for eliminating sidelobe echoes of millimeter-wave cloud radar. Background technique [0002] At present, domestic and foreign millimeter-wave cloud radars mainly use solid-state electronic devices, which make the system have good stability and long-term observation capabilities. However, in order to improve the radar detection range and sensitivity, the combination of wide pulse and narrow pulse is usually used to meet the detection of different cloud types in nature. Wide pulses have higher energy, which can effectively improve the radar detection distance and sensitivity, but the "side effects" are obvious, such as pulse compression will produce false sidelobe echoes. For the range sidelobe clutter generated by radar pulse compression technology, the predecessors mainly eliminated the sidelobe echo based on the mechanism of the radar itself, such as using wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S13/95G01S7/41G01S7/292G01S7/28
CPCG01S13/958G01S7/418G01S7/292G01S7/2813Y02A90/10
Inventor 曾正茂郑佳锋袁伟曾颖婷黄新洲
Owner 福建省气象信息中心
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