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RADIO WAVE PROPAGATION CHARACTERISTIC ESTIMATION DEVICE, RADIO WAVE PROPAGATION CHARACTERISTIC ESTIMATION METHOD, AND RADIO WAVE PROPAGATION CHARACTERISTIC ESTIMATION PROGRAM
RADIO WAVE PROPAGATION CHARACTERISTIC ESTIMATION DEVICE, RADIO WAVE PROPAGATION CHARACTERISTIC ESTIMATION METHOD, AND RADIO WAVE PROPAGATION CHARACTERISTIC ESTIMATION PROGRAM
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机译:无线电波传播特性估计装置,无线电波传播特性估计方法和无线电波传播特性估计程序
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摘要
PROBLEM TO BE SOLVED: To reduce a data storage area on a calculator and a calculation processing load when radio wave propagation characteristics are estimated using electromagnetic field simulation.SOLUTION: A radio wave propagation characteristic estimation device which estimates radio wave propagation characteristics by performing electromagnetic field simulation using FDTD method, includes: storage means for storing electric field component data and magnetic field component data in a time domain of an analytical space obtained by the electromagnetic field simulation using the FDTD method; sequence creation means for creating a complex number sequence in which the electric field component data is applied to either one of a real part and an imaginary part and the magnetic field component data is applied to the other one of them; FFT calculation means for executing fast Fourier transform calculation using the complex number sequence as input; and frequency domain data calculation means for obtaining the electric field component data in the frequency domain and the magnetic field component data in the frequency domain from the result obtained by executing the fast Fourier transform calculation, taking advantage of characteristics of fast Fourier transform calculation.
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