Design and implementation of near-field, wideband synthetic aperture beamformers

被引：70

作者：

Ahmad, F

Frazer, GJ

Kassam, SA

Amin, MG

机构：

[1] Villanova Univ, Ctr Adv Commun, Villanova, PA 19085 USA

[2] Univ Penn, Dept Elect & Syst Engn, Philadelphia, PA 19104 USA

[3] Def Sci & Technol Org, ISR Div, Edinburgh, SA 5111, Australia

来源：

IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS | 2004年 / 40卷 / 01期

关键词：

D O I：

10.1109/TAES.2004.1292154

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

A coarray-based near-field, wideband synthetic aperture beamformer using stepped-frequency signal synthesis and post-data acquisition processing is presented. While coarray techniques offer significant reduction in the number of array elements for a given angular resolution, the hybrid subarray-stepped frequency realization of wideband systems simplifies implementations and offers flexibility in beamforming. Proof of concept is provided using real data collected in an anechoic chamber for several pulse shapes and array weightings.

引用

页码：206 / 220

页数：15

共 21 条

[1] Performance analysis and array design for wide-band beamformers [J].