Ultra-wideband ranging in Non-Line of Sight environments

Author

Zhang, Hao ; Cui, Xue-rong ; Gulliver, T. Aaron

Author_Institution

Dept. of Inf., Sci. & Eng., Ocean Univ. of China, Qingdao, China

fYear

2011

fDate

23-26 Aug. 2011

Firstpage

364

Lastpage

368

Abstract

To improve the precision of Energy Detection (ED) based ranging estimation, especially in Non-Line of Sight (NLOS) environments, a new threshold selection algorithm is proposed which is based on a joint metric using the skewness and maximum slope. The best thresholds for different SNR values are investigated and the effect of the integration period is examined. Comparisons with other ED based algorithms show that in NLOS environments, the joint metric provides higher precision in both high and low SNR environments.

Keywords

signal detection; statistical analysis; time-of-arrival estimation; ultra wideband communication; ED-based ranging estimation; NLOS environments; SNR values; UWB technology; energy detection; nonline-of-sight environments; skewness-maximum slope joint metric; statistical parameters; threshold crossing TOA estimation; threshold selection algorithm; ultrawideband ranging; Distance measurement; Joints; Niobium; Signal processing algorithms; Signal to noise ratio; Time of arrival estimation;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, Computers and Signal Processing (PacRim), 2011 IEEE Pacific Rim Conference on

Conference_Location

Victoria, BC

ISSN

1555-5798

Print_ISBN

978-1-4577-0252-5

Electronic_ISBN

1555-5798

Type

conf

DOI

10.1109/PACRIM.2011.6032920

Filename

6032920