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High-definition multidirectional coordination insect migration radar measuring instrument

A measuring instrument and radar technology, applied in the field of insect radar, can solve the biological and biological problems that cannot realize insect species identification and migratory trajectory analysis, it is difficult to clarify the community structure of migratory insects, the relationship between species fluctuating in population and pest outbreaks. Ecological mechanism and other issues, to achieve the effect of fine measurement

Active Publication Date: 2017-03-15
BEIJING INSTITUTE OF TECHNOLOGYGY
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Problems solved by technology

However, the existing insect radar is limited by factors such as working system, system function and indicators, and it is still unable to realize the identification of insect species and the analysis of migratory trajectory, and it is difficult to clarify the community structure, population fluctuation, species relationship and pests of migratory insects. Biological and ecological mechanisms of outbreak causation to support early warning of migratory pests

Method used

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  • High-definition multidirectional coordination insect migration radar measuring instrument
  • High-definition multidirectional coordination insect migration radar measuring instrument
  • High-definition multidirectional coordination insect migration radar measuring instrument

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Embodiment

[0198] The CST simulation results are compared with the theoretical formula calculation results to verify the modeling accuracy and parameter inversion effect. The simulator is the method of moments. Insects are modeled with a rotationally symmetric medium ellipsoid model. The semi-axis lengths of typical migratory insects (such as planthoppers) are a=1.5mm, b=0.5mm. The CST simulation model is as follows: Figure 7 shown.

[0199] The coordinates of the three radars are (500,0,0), (0,500,0), (-500,0,0), the coordinates of the insect are (100, 100, 900), the unit is meters, and the orientation of the insect body axis is global The angle parameter in the coordinate system is θ=60°, The geometric relationship is shown as Figure 8 .

[0200] The full-polarization RCS pattern (red dotted line) of the three radars simulated by CST is compared with the full-polarization RCS pattern (blue solid line) calculated according to the full-polarization RCS formula, as shown in Figure...

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Abstract

The invention discloses a high-definition multidirectional coordination insect migration radar measuring instrument for realizing insect migration mechanism analysis. Through cooperated operation of a high-definition phased-array radar subsystem and a three-grade multiband full-polarization radar subsystem, behavior monitoring for a migrated insect macroscopic group and microscopic individuals can be realized simultaneously, and fine measurement for three-dimensional tracks of the insects is realized, thereby providing an effective measurement tool for insect migration behavior mechanism research and agricultural insect early-warning. Furthermore, by means of target multi-band full-polarization multidirectional scattered information which is acquired by the three-grade multiband full-polarization radar subsystem, inversion of multidirectional biological parameters of the insects can be realized, wherein the biological parameters comprise information such as head orientation, body length and body weight of each insect, thereby supplying classification basis for on-air kind classification of migrated insects, and disclosing an on-air group structure of the migrated insects.

Description

technical field [0001] The invention relates to the field of insect radar for remote sensing measurement of biological and behavioral parameters of migratory insects, in particular to a high-resolution multi-dimensional cooperative insect migratory radar measuring instrument. Background technique [0002] Migration is a special behavioral strategy for insects to avoid unfavorable habitats / open up new resources in time and space, and it is also an important reason for the outbreak of insect pests in different places and the prevalence of diseases. my country is located in a typical East Asian monsoon climate zone, which provides a stable wind and temperature background field for the seasonal migration of pests. Migratory insect pests occur in an area of ​​about 7 billion mu per year in my country, causing a major loss of nearly 40 billion jin of grain and cotton, seriously threatening the safety of food production in my country, and have become a major bottleneck restricting ...

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Application Information

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IPC IPC(8): G01S13/87G01S13/88
CPCG01S13/87G01S13/88
Inventor 胡程龙腾曾涛王锐毛二可姚笛
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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