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Solution of wide band scattering problems using the characteristic basis function method

机译:用特征基函数法求解宽带散射问题

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摘要

A numerically efficient method for the evaluation of wide band scattering characteristics is presented. This approach, which is based on the characteristic basis function method (CBFM), utilises the characteristic basis functions (CBFs) that are derived for the highest frequency in the range of interest. These CBFs, once generated, also capture the electromagnetic behaviour of the lower frequencies as well. The use of these bases, which will be referred to as ultra-wide band characteristic basis functions (UCBFs), enables one to solve the scattering for any frequency sample in the band without going through the time-consuming process to generate the CBFs anew. Numerical results shown validate the accuracy and the time efficiency of this method.
机译:提出了一种数值有效的宽带散射特性评估方法。这种基于特征基函数方法(CBFM)的方法利用了针对感兴趣范围内最高频率而导出的特征基函数(CBF)。这些CBF一旦生成,也将捕获低频的电磁行为。这些基础的使用,将被称为超宽带特征基础函数(UCBF),使人们能够解决该频段内任何频率样本的散射,而无需经历耗时的过程来重新生成CBF。数值结果表明了该方法的准确性和时间效率。

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