Millimeter-wave cloud radar dense fog visibility inversion method and system
A visibility and millimeter wave technology, applied in the field of radar, can solve the problem of inability to effectively obtain the spatial visibility distribution of fog, and achieve the effect of enriching the types of data products and strong detection ability
Active Publication Date: 2016-04-13
航天新气象科技有限公司
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[0004] The technical problem to be solved by the present invention is to provide a millimeter-wave cloud radar heavy fog visibility inversion method and system for the deficiencies of the prior art, which solves the problem that the spatial visibility distribution of heavy fog cannot be effectively obtained
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[0056] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.
[0057] figure 1 It is a schematic flow chart of the millimeter-wave cloud radar heavy fog visibility retrieval system of the present invention; as figure 1 As shown, the method includes the following steps:
[0058] Step 1: Control the millimeter-wave cloud radar to detect meteorological targets according to preset working parameters and preset scanning modes, and generate radar echo signals;
[0059] Step 2: Preprocessing the radar echo signal to remove clutter and echo singular points to obtain the fog echo signal, and output the preprocessed data;
[0060] Step 3: save the preprocessed data;
[0061] Step 4: Read the saved preprocessed data, and perform heavy fog visibility inversion on the preprocessed data t...
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The invention relates to a millimeter-wave cloud radar dense fog visibility inversion method and system. The method includes the following steps that: a millimeter-wave cloud radar is controlled to carry out meteorological target detection according to preset work parameters and preset scanning modes and generate radar echo signals; clutters and echo singular points are removed from the radar echo signals, so that dense fog echo signals can be preprocessed, and preprocessed data are outputted; the reprocessed data are saved; the saved reprocessed data are read, and dense fog visibility inversion is performed on the reprocessed data, and the distribution of visibility in a horizontal direction and the distribution of visibility in a vertical direction can be obtained. With the millimeter-wave cloud radar dense fog visibility inversion method and system adopted, the problem of incapability of effectively obtaining the distribution of dense fog space visibility can be solved.
Description
technical field [0001] The invention relates to the field of radar technology, in particular to a method and system for inverting visibility of fog with millimeter-wave cloud radar. Background technique [0002] Visibility (Visibility) is first defined for meteorological purposes and quantitatively estimated by artificial observers. Horizontal visibility in meteorology refers to a black target on the ground with a horizontal field of view of about 0.5°-5°, and there is no cloud during the day Under the sky background conditions, the observer can barely recognize (or just can't recognize) the distance of the target object. It is an atmospheric physical quantity that scales the visual range of the human eye, and reflects the ability of the observer to distinguish the target object from the background object, which is mainly caused by the light scattering of particles in the atmosphere. In meteorology, visibility is the maximum distance at which an object can be clearly identi...
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Login to View More IPC IPC(8): G01S13/95
CPCG01S13/95Y02A90/10
Inventor 李岩松冯凯周亭亭魏艳强王志锐
Owner 航天新气象科技有限公司