Title :
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
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;
Conference_Titel :
Intelligent Computing and Integrated Systems (ICISS), 2010 International Conference on
Conference_Location :
Guilin
Print_ISBN :
978-1-4244-6834-8
DOI :
10.1109/ICISS.2010.5657027
