Time difference of arrival localisation exploiting all available time differences
article
Time difference of arrival geolocation is re-analysed exploiting all available time differences, though sticking to closed-form algorithms based on the minimum number of time differences. The additional information is statistically utilised in a sound way. Error estimates for the resulting position and the Cramer-Rao lower bound are derived. The two-dimensional case has explicitly been demonstrated for three and four sensors using three and six-time differences. Results are confirmed by Monte Carlo simulations, indeed showing improved accuracy. A comparison with an existing localisation method is presented as well. The three-dimensional localisation scenario can be analysed analogously.
TNO Identifier
875116
ISSN
17518784
Source
IET Radar, Sonar and Navigation, 14(2), pp. 252-256.
Publisher
Institution of Engineering and Technology IET
Collation
5 p.
Pages
252-256
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