| 基于Fourier变换非一致间距阵列的一种合成法 |
| |
| 引用本文： | 任险峰,刘勇.基于Fourier变换非一致间距阵列的一种合成法[J].重庆邮电学院学报(自然科学版),2003,15(2):1-7. |
| |
| 作者姓名： | 任险峰 刘勇 |
| |
| 作者单位： | [1]葡萄牙马德拉大学 [2]重庆邮电学院，重庆400065 |
| |
| 摘 要： | 基于阵列图及其分布间的Fourier关系，作者提出了非一致间距阵列的一种合成方法。在Fourier关系下，通过抽样一个给定的阵列图，就能使用FFT(快速Fourier变换)得到其近似连续的阵列分布。为提高改善阵列图的性能，提出一个算式用于决定非一致间距阵列的空间间隔，从而在合成的阵列中保持更多的能量。该方法简单且易于应用。
|
| 关 键 词： | Fourier变换 非一致间距阵列 阵列图 合成方法 FFT 帕斯瓦定理 空间间隔 |
A Synthesis Method of Nonuniformly Spaced Arrays Using the Fourier Transform |
| |
| REN Xian-feng ,LIU Yong.A Synthesis Method of Nonuniformly Spaced Arrays Using the Fourier Transform[J].Journal of Chongqing University of Posts and Telecommunications(Natural Sciences Edition),2003,15(2):1-7. |
| |
| Authors: | REN Xian-feng LIU Yong |
| |
| Institution: | REN Xian-feng 1,LIU Yong 2 |
| |
| Abstract: | A synthesis method of nonuniformly spaced arrays is proposed in this paper, based on the Fourier relation between the array factor and its respective distribution. Under the Fourier relation, we can use the FFT (Fast Fourier Transform) to obtain the nearly continuous array distribution by sampling a given array factor. To improve the pattern performance, a proposed formulation is used to determine the spacing of nonuniformly spaced array,trying to keep the more energy in the synthesized array. The synthesis method is simple and easy to use. |
| |
| Keywords: | nonuniformly spaced array Fourier relation Fast Fourier Transforsis methods (un)equally spaced arrays Parseval's theorem |
| 本文献已被 CNKI 维普 等数据库收录！ |
