An Investigtaion into the Effect of Antenna Array Geometry on TDOA Accuracy and Coverage

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Authors
  1. Colman, G.W.K.
Corporate Authors
Defence Research Establishment Ottawa, Ottawa ONT (CAN)
Abstract
In this technical note, we make an initial study of the effect of sensor geometry on the accuracy and coverage of Chan's Time Difference Of Arrival (TDOA) geolocation algorithm. Chan's algorithm is widely regarded as the most suitable method for hyperbolic location. A brief overview of the algorithm is presented followed by simulation results and discussion of its implementation with varied antenna geometries. We then look at the effect of a non-line-of-sight (NLOS) path on the accuracy of predictions with a possible solution to this problem. Finally we see the effect of increased TDOA error on position estimates.
Keywords
Hyperbolic Location;E911;Non-line-of-sight (NLOS) channels;TDOA (Time Difference of Arrival)
Report Number
DREO-TR-1999-066 — Technical Memorandum
Date of publication
01 Jun 1999
Number of Pages
34
DSTKIM No
99-01651
CANDIS No
511552
Format(s):
Hardcopy;Document Image stored on Optical Disk

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