Robustness of TOA and TDOA Positioning Under Suboptimal Weighting Conditions

The performance robustness of time of arrival (TOA) and time difference of arrival (TDOA) is evaluated when measurement variances are not accurately known or are approximated. If the actual variances are applied, then TOA and TDOA are known to have equal performance. However, if suboptimal weighting...

Full description

Saved in:
Bibliographic Details
Published inIEEE transactions on aerospace and electronic systems Vol. 43; no. 3; pp. 1177 - 1180
Main Authors Ju-Yong Do, Rabinowitz, M., Enge, P.
Format Journal Article
LanguageEnglish
Published New York IEEE 01.07.2007
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Aircraft components
Approximation
Arrivals
Covariance matrix
Electronic systems
Error analysis
Least squares approximation
Loss measurement
Mathematical analysis
Measurement errors
Performance loss
Position measurement
Robustness
Statistics
Time difference of arrival
Time measurement
Weighting
Online AccessGet full text

Cover

More Information
Summary:The performance robustness of time of arrival (TOA) and time difference of arrival (TDOA) is evaluated when measurement variances are not accurately known or are approximated. If the actual variances are applied, then TOA and TDOA are known to have equal performance. However, if suboptimal weighting matrices are applied either due to inaccurate knowledge of measurement error statistics or for simplified implementations in practice, there are performance losses proportional to the number of ranging sources.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0018-9251
1557-9603
DOI:10.1109/TAES.2007.4383608