Title :
Time of arrival estimation in pulsar-based navigation systems
Author :
Kabakchiev, Chr ; Garvanov, I. ; Behar, V. ; Kabakchieva, D. ; Buist, P. ; Bentum, M.
Author_Institution :
Sofia Univ., Sofia, Bulgaria
Abstract :
This paper focuses on the Time of Arrival (TOA) estimation problem related to new application of pulsar signals for airplane-based navigation. The aim of the paper is to propose and evaluate a possible algorithm for TOA estimation that consists of epoch folding, filtering, CFAR detection, cross-correlation and TOA calculation. The TOA estimation algorithm proposed is verified using real experimental data obtained from the Westerbork radio observatory in The Netherlands. The performance of the proposed TOA algorithm is evaluated in terms of SNR at the cross-correlator input and the TOA accuracy.
Keywords :
aircraft; correlation methods; space vehicle navigation; time-of-arrival estimation; CFAR detection; Netherlands; TOA estimation problem; Westerbork radio observatory; airplane-based navigation; crosscorrelation; epoch folding; filtering; pulsar signal application; pulsar-based navigation system; time of arrival estimation problem; Accuracy; Delay effects; Filtering algorithms; Matched filters; Radio navigation; Signal to noise ratio; Time of arrival estimation; Pulsar signal detection; estimation; navigation;
Conference_Titel :
Signal Processing Symposium (SPSympo), 2015
Conference_Location :
Debe
DOI :
10.1109/SPS.2015.7168287
