A new method for DOA and amplitude joint estimation

Author

Song, Hai-yan ; Piao, Sheng-chun

Author_Institution

Nat. Lab. of Underwater Acoust. Technol., Harbin Eng. Univ., Harbin

fYear

2009

fDate

25-27 May 2009

Firstpage

1097

Lastpage

1102

Abstract

A new technology for spatially localizing acoustic backscatter called VS-CAATI (Virtual and Sub-array Computed Angle-of-Arrival Transient Imaging) is proposed in this paper. The new technology can jointly estimate DOA and amplitude at the same time. The principles underlying VS-CAATI, which are based on virtual array processing and sub-array technology, are presented in detail in the paper. VS-CAATI is easily implemented and offers dramatic improvements over conventional CAATI. Furthermore, this technique is superior to some other DOA estimation methods.

Keywords

array signal processing; direction-of-arrival estimation; VS-CAATI; acoustic backscatter; amplitude estimation; direction-of-arrival estimation; virtual and sub-array computed angle-of-arrival transient imaging; virtual array processing; Acoustic imaging; Acoustic scattering; Amplitude estimation; Apertures; Array signal processing; Backscatter; Direction of arrival estimation; High-resolution imaging; Light scattering; Underwater acoustics; DOA; VS-CAATI (virtual and sub-array computed angle-of-arrival transient imaging); amplitude estimation; sub-array; virtual array processing;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics and Applications, 2009. ICIEA 2009. 4th IEEE Conference on

Conference_Location

Xi´an

Print_ISBN

978-1-4244-2799-4

Electronic_ISBN

978-1-4244-2800-7

Type

conf

DOI

10.1109/ICIEA.2009.5138371

Filename

5138371