Fast reading and precise interpolation method of mass target characteristic data
A technology of target characteristics and interpolation methods, applied in special data processing applications, electrical digital data processing, instruments, etc., can solve unscientific problems, improve interpolation accuracy, save repeated calculations, and avoid large-scale reading.
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[0039] Specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.
[0040] Such as figure 1 As shown, the present invention discloses a method for fast reading and accurate interpolation of massive target characteristic data, the method includes the following steps:
[0041] Step 1. Use Physical Optics (PO) or bouncing ray method to calculate the target's monostatic or bistatic radar cross section (RCS). For the RCS at the frequency endpoint, it is required to store its first-order and second-order derivative information at the same time.
[0042] Taking the bi-station RCS interpolation as an example, it contains five variables (incident elevation angle, incidence azimuth angle, scattering elevation angle, scattering azimuth angle, and irradiation frequency), among which the first four variables are circular, but the irradiation frequency is different. Therefore, the interpolation and extrapolation accuracy ne...
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