High resolution direction of arrival estimation methods applied to measurements from a digital array antenna

被引：2

作者：

Björklund, S ^{[1
]}

Heydarkhan, A ^{[1
]}

机构：

[1] Def Res Estab FOA, SE-58111 Linkoping, Sweden

来源：

SAM 2000: PROCEEDINGS OF THE 2000 IEEE SENSOR ARRAY AND MULTICHANNEL SIGNAL PROCESSING WORKSHOP | 2000年

关键词：

D O I：

10.1109/SAM.2000.878052

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

At the Defence Research Establishment of Sweden (FOA) an experimental S-band receiving digital array antenna for radar applications has been designed and built. It consists of a horizontal uniform linear array (ULA) of 12 antenna elements, whose digitized signals are processed in non-real time in a computer. Accurate calibration is utilized. We have compared several spectral and parametric direction-of-arrival (DOA) estimation methods for varying DOA separations, number of samples and signal-to-noise ratios (SNR) on measured data from an anechoic chamber. At ideal conditions the resolution can be improved considerably with model based DOA methods compared to conventional beamforming. We achieved a resolution below 1/10 of the resolution of conventional beamforming.

引用

页码：464 / 468

页数：5