Improving ranging accuracy by two-step TOA estimation for UWB radio

Author

Fukao, Chizu ; Sasaki, Masaya ; Ohno, Kohei ; Itami, Makoto

Author_Institution

Dept. Appl. Electron., Tokyo Univ. of Sci., Noda

fYear

2008

fDate

7-10 Dec. 2008

Firstpage

1

Lastpage

5

Abstract

This paper discusses a ranging technique of Ultra Wideband (UWB) system. The Energy Detection (ED) and Matched Filter (MF) are common techniques as UWB pulse detection methods in TOA (Time of Arrival) ranging system. The two-step TOA estimation is combined the ED and the MF. The two-step detection enables higher ranging accuracy than the ED with the simpler receiver structure than the MF. In this paper, the modified two-step estimation is investigated. A dual window and a sampling interval compensation technique are proposed in the ED and the MF, respectively. The performances of MAE (Mean Absolute Error) are improved in the IEEE802.15.4a system.

Keywords

compensation; matched filters; radio networks; ultra wideband communication; UWB radio; dual window; energy detection; matched filter; mean absolute error; ranging accuracy; sampling interval compensation technique; time of arrival; two-step TOA estimation; ultra wideband system; Communication systems; Information theory; Matched filters; Physical layer; Sampling methods; Signal sampling; Spread spectrum communication; Time of arrival estimation; Ultra wideband technology; Wireless personal area networks;

fLanguage

English

Publisher

ieee

Conference_Titel

Information Theory and Its Applications, 2008. ISITA 2008. International Symposium on

Conference_Location

Auckland

Print_ISBN

978-1-4244-2068-1

Electronic_ISBN

978-1-4244-2069-8

Type

conf

DOI

10.1109/ISITA.2008.4895504

Filename

4895504