Insect dimension measurement method based on multi-frequency scattering modeling
A measurement method and technology for insects, which are applied in the field of insect size measurement based on multi-frequency scattering modeling, can solve problems such as single amount of information, limit the effectiveness of insect radar, and cannot accurately obtain insect biological parameters, so as to enhance the ability to identify Effect
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[0072] In order to verify the aforementioned size measurement method, four typical migratory insects (meadow borer, cotton bollworm, armyworm, and rice locust) were modeled using a rotationally symmetric medium ellipsoid, and their dimensions were set to be 12mm×2mm, 20mm× 4mm, 24mm×4mm and 30mm×6mm (long axis x short axis). The wideband RCS of four dielectric ellipsoids with different sizes is simulated by CST. And give the corresponding piecewise function fitting results, such as image 3 shown. It can be seen that the piecewise function of the given form can satisfy the fitting of the wide-band RCS simulation data of insects of different sizes.
[0073] Based on the point frequency RCS simulation data of the three bands of X, Ku and Ka, a kind of insect size measurement method based on multi-frequency scattering modeling according to the present invention is adopted to complete the insect size measurement simulation under this parameter, and the specific process is as fol...
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