| 基于FDTD的天线远场快速算法 |
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| 引用本文： | 丁君,于明,郭陈江,许家栋.基于FDTD的天线远场快速算法[J].系统仿真学报,2007,19(14):3193-3195,3205. |
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| 作者姓名： | 丁君 于明 郭陈江 许家栋 |
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| 作者单位： | 西北工业大学,电子信息学院,陕西,西安,710072 |
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| 摘 要： | 将FDTD法与二维离散余弦变换（2D-DCT）递归算法相结合计算天线远场,大幅提高了计算效率并降低了计算存储空间。采用2D-DCT递归算法对近场数据进行压缩,得到失真度较小的重构场,并用该重构场计算天线远场,数值仿真角反射器天线所得到的结果与实验测量结果吻合良好,说明该方法的有效性。
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| 关 键 词： | 二维离散余弦变换 递归算法 角反射器 |
| 文章编号： | 1004-731X（2007）14-3193-03 |
| 收稿时间： | 2006-05-30 |
| 修稿时间： | 2006-05-302006-07-10 |
Fast Algorithm of Antenna Far Field in FDTD |
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| DING Jun,YU Ming,GUO Chen-jiang,XU Jia-dong.Fast Algorithm of Antenna Far Field in FDTD[J].Journal of System Simulation,2007,19(14):3193-3195,3205. |
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| Authors: | DING Jun YU Ming GUO Chen-jiang XU Jia-dong |
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| Abstract: | An efficient method of computing the antenna far field was introduced,which used the finite difference time domain(FDTD)method combining a recursion algorithm of two dimension discrete cosine transform(2D-DCT).This method improved computing efficiency greatly and saved memory.The corner reflector antenna was calculated using FDTD.A reconstructed near field calculated by 2D-DCT shows little distortion.The far fields received from reconstructed near fields agree with the experimental measuring results. |
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| Keywords: | FDTD |
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