Rapid measurement method for insect ascending and descending rate based on Radon transformation
A measurement method, insect technology, applied in the field of radar, can solve problems such as the complexity of measuring the rate of rise and fall, achieve good adaptability, and realize the effect of simplicity
Active Publication Date: 2020-04-14
BEIJING INSTITUTE OF TECHNOLOGYGY
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Problems solved by technology
The insect ascent and descent rate measurement algorithm in the prior art is mainly based on the digitally upgraded vertical observation insect radar, but the above-mentioned insect ascent and descent rate measurement algorithm adopts the target detection method is still fixed threshold detection, and the ascent of track correlation and linear fitting Descent rate measurement is also more complicated to implement
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[0040] The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0041] see figure 1 , figure 2 , figure 1 It is a working flow chart of a method for rapidly measuring insect ascent and descent rate based on Radon transform in the present invention. figure 2 for the present invention figure 1 A work flow diagram of step S2 of a method for rapidly measuring insect ascending and descending rates based on Radon transform. The invention provides a working flow chart of a method for quickly measuring the rate of rise and fall of insects based on Radon transformation, including:
[0042] S1. Obtain a data matrix. Specifically, the data matrix may be, but not limited to, a distance dimension data matrix or a pulse number data matrix of the insect detection radar. The data matrix can also be a fast time data matrix or a slow time data matrix of the insect detection radar.
[0043] Specifically, the step of acquiring th...
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The invention discloses rapid measurement method for an insect ascending and descending rate based on Radon transformation. The measurement method comprises the steps of carrying out binarization on adata matrix to obtaining a data matrix after binarization; carrying out linear Radon transformation on the data matrix after binarization to convert the data matrix after binarization to a parameterdomain; detecting a peak value of the parameter domain; extracting a parameter domain coordinate corresponding to the peak value of the parameter domain; and calculating the ascending and descending rate of a target track in the data matrix according to the corresponding relationship between the parameter domain coordinate and the target track slope and the corresponding relationship between the target track slope and the target ascending and descending rate. According to the method, the included linear slope is extracted by detecting the peak value of the parameter domain, and the insect ascending and descending rate is rapidly measured. The method can serve as an effective and rapid measurement means for measuring the ascending and descending rate of insects.
Description
technical field [0001] The invention relates to the technical field of radar, in particular to a method for rapidly measuring the rate of rise and fall of insects based on Radon transformation. Background technique [0002] Numerous insects, especially locusts, rice planthoppers, meadow borers and other pests migrate at night on a large scale and often bring serious economic losses to the places where they migrate. However, traditional optical equipment has limited observation capabilities at night, and radar is used as a long-distance detection tool. , can realize all-day and all-weather monitoring of the target airspace, provides a new method for observing airborne insect swarms, and plays an irreplaceable role in the study of insect migration. [0003] The rate of insect ascent and descent is an important indicator to reflect the direction and speed of insect movement during migration. The insect ascent and descent rate measurement algorithm in the prior art is mainly ba...
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Login to View More IPC IPC(8): G01S13/88G01S7/41
CPCG01S7/418G01S13/88
Inventor 龙腾王锐张天然胡程曾涛
Owner BEIJING INSTITUTE OF TECHNOLOGYGY