Sawtooth-correlated TOA estimation algorithm based on energy envelope for IR-UWB systems

Author

Wang, Zhibo ; Liu, Xiaojian ; Zheng, Lin ; Qiu, Hongbin

Author_Institution

Dept. of Inf. & Commun., Guilin Univ. of Electron. Technol., Guilin, China

fYear

2010

fDate

22-24 Oct. 2010

Firstpage

934

Lastpage

937

Abstract

The received signal is composed of a variety of different multipath delayed signals due to the complexity of indoor communications environment. In order to improve accuracy of TOA estimation of first path, a novel TOA estimation algorithm for IR-UWB systems is presented. In this paper, we consider the sawtooth waveform as a local template signal correlate to the received signal to detect the leading-edge path signal, closed-form expressions are derived for TOA estimation. Also, the effect of local template signal´s length is analyzed. Performances of different algorithms are compared via simulations.

Keywords

time-of-arrival estimation; ultra wideband technology; IR-UWB systems; closed-form expressions; energy envelope; indoor communications environment; leading-edge path signal; multipath delayed signals; received signal; sawtooth-correlated TOA estimation algorithm; Accuracy; Estimation; Image edge detection; IR-UWB; TOA estimation; correlator; ranging;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Computing and Integrated Systems (ICISS), 2010 International Conference on

Conference_Location

Guilin

Print_ISBN

978-1-4244-6834-8

Type

conf

DOI

10.1109/ICISS.2010.5657027

Filename

5657027