问题标题:
英语翻译a6-cm-diametermetalcylindricalscattererinfreespaceismodeled.ThesourceexcitationisaGaussianpulsewithacarrierfrequencyof5GHz.Thegridresolution(dx=3mm)waschosentoprovide20samplesperwavelengthatthecenter
问题描述:
英语翻译
a6-cm-diametermetalcylindricalscattererinfreespaceismodeled.ThesourceexcitationisaGaussianpulsewithacarrierfrequencyof5GHz.Thegridresolution(dx=3mm)waschosentoprovide20samplesperwavelengthatthecenterfrequencyofthepulse(whichinturnprovidesapproximately10samplesperwavelengthatthehighendoftheexcitationspectrum,around10GHz).Thecomputationaldomainistruncatedusingtheperfectlymatchedlayer(PML)absorbingboundaryconditions.
牛东回答:
在自由空间内,为一直径为6厘米的金属桶状粒子散射器建模.激励源为高斯脉冲,其产生的带电粒子频率为5兆赫.将网格分辨率选择为DX=3,这样可以在脉冲中心频率处每一波长中取得20个标本(同时,在激发光谱的高频端,每一波长可提供10个标本,此处频率大约为10兆赫).计算区域限定在理想匹配层(PML)确定的吸收边界之内.
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