A Lattice Viewpoint for Direction of Arrival Estimation using Quantized Time Differences of Arrival

Author

Pirinen, Tuomo W.

Author_Institution

Inst. of Signal Process., Tampere Univ. of Technol.

fYear

2006

fDate

12-14 July 2006

Firstpage

50

Lastpage

54

Abstract

Direction of arrival (DOA) estimation from time differences of arrival (TDOA) is used in several array systems. In some cases, practical constraints may necessitate the use of heavily quantized TDOA estimates. The quantization in TDOAs also causes the directional estimate to be quantized. This paper proposes a lattice-based representation for the quantization scenario. This representation can be used to evaluate the performance of a given array when TDOAs are quantized and it also provides guidelines for optimum array design. In addition, the lattice structure can be used for evaluating the reliability of DOA estimates when other errors are present

Keywords

array signal processing; direction-of-arrival estimation; quantisation (signal); time-of-arrival estimation; TDOA; array systems; direction of arrival estimation; lattice viewpoint; quantized time differences of arrival; Array signal processing; Delay estimation; Direction of arrival estimation; Error analysis; Guidelines; Lattices; Quantization; Sensor arrays; Sensor systems; Surveillance;

fLanguage

English

Publisher

ieee

Conference_Titel

Sensor Array and Multichannel Processing, 2006. Fourth IEEE Workshop on

Conference_Location

Waltham, MA

Print_ISBN

1-4244-0308-1

Type

conf

DOI

10.1109/SAM.2006.1706089

Filename

1706089