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Alternative TitleFDTD Near to Far Field Tran sforma tionBa sed on Time-doma in Sampl ing
蒋长宏; 张云华; 北京8701信箱
Source Publication计算机仿真
Keyword时域有限差分 近远场变换 八木天线 时域抽样
Other AbstractA new algorithm: FDTD near-to far-field transform is p roposed based on time - domain samp ling to imp rove the classical time - domain near-to far-field calculation which consumes too much memory and CPU times. The new algorithm based on a fact of that it doesnpt need such a fine time interval in time- domain near - to far - field calculation as finite-difference time-domain calculation.In order to reduce the memory storage and save the CPU time, first samp ling the time-domain near-field data to reduce the data redundancy before the near-to far-field calculation, and using the imp roved algorithm to calculate the far -field pattern. To verify this algorithm, the new algorithm is compared with the classicalmethod by calculating the far-field pattern of 7-element Yagi-Uda antenna, the result shows that the new algorithm has the same accuracy as the classicalmethod, at the same time it can reduce the memory storage by 90% and save the CPU time by 80%. It will be a fast time-domain method in antenna op timization and radar cross section (RCS) calculation.
Indexed ByCSCD
Funding Project中国科学院空间科学与应用研究中心
Citation statistics
Document Type期刊论文
Corresponding Author北京8701信箱
Recommended Citation
GB/T 7714
蒋长宏,张云华,北京8701信箱. 基于时域抽样法的FDTD近远场变换[J]. 计算机仿真,2007,24(10):103-106.
APA 蒋长宏,张云华,&北京8701信箱.(2007).基于时域抽样法的FDTD近远场变换.计算机仿真,24(10),103-106.
MLA 蒋长宏,et al."基于时域抽样法的FDTD近远场变换".计算机仿真 24.10(2007):103-106.
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