首页> 外国专利> 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

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

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.
机译:解决的问题:当使用电磁场模拟估计无线电波传播特性时,减少计算器上的数据存储区域和计算处理负荷。解决方案:一种无线电波传播特性估计装置,其通过执行电磁场来估计无线电波传播特性。使用FDTD方法进行模拟,包括:存储装置,用于在通过使用FDTD方法进行的电磁场模拟获得的分析空间的时域中存储电场分量数据和磁场分量数据;序列创建装置,用于创建复数序列,在该复数序列中,将电场分量数据施加到实部和虚部中的一个,并将磁场分量数据施加到它们中的另一个。 FFT计算装置,用于使用复数序列作为输入来执行快速傅立叶变换计算;频域数据计算装置,利用快速傅里叶变换计算的特性,从通过执行快速傅里叶变换计算获得的结果中获得频域中的电场分量数据和频域中的磁场分量数据。

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