The Intrinsic Mode Function Time Delay Method for beamforming

Author

Guang-Bing Yang ; Lian-Gang Lu ; Ying Jiang

Author_Institution

Key Lab. of Marine Sci. & Numerical Modeling, First Inst. of Oceanogr., Qingdao, China

fYear

2012

fDate

14-19 Oct. 2012

Firstpage

1

Lastpage

4

Abstract

This paper presents the Intrinsic Mode Function Time Delay Method (IMFTDM) which is based on Hilbert Huang Transform (HHT) and its application in beamforming. The IMFTDM can delay the broadband Intrinsic Mode Function (IMF) by arbitrary time accurately. And in this work, the IMFTDM is performed using the simulated and real data in beamforming to test its performance. The results show that it can improve the array gain and the accuracy of Direction of Arrival (DOA) estimation. With discussion, we suggest that these advantages are attributed by the following reasons. The single IMF generally has less noise and better correlation result than original data and the IMFTDM can provide better time delay.

Keywords

Hilbert transforms; array signal processing; correlation methods; direction-of-arrival estimation; Hilbert Huang transform; arbitrary time; array gain; beamforming; broadband intrinsic mode function; correlation; direction of arrival estimation; intrinsic mode function time delay method; Accuracy; Array signal processing; Arrays; Broadband communication; Delay; Delay effects; Finite impulse response filter; Beamforming; HHT; IMF; IMFTDM; Time Delay;

fLanguage

English

Publisher

ieee

Conference_Titel

Oceans, 2012

Conference_Location

Hampton Roads, VA

Print_ISBN

978-1-4673-0829-8

Type

conf

DOI

10.1109/OCEANS.2012.6404788

Filename

6404788