Title
SENSOR NETWORKS TDOA SELF-CALIBRATION: 2D COMPLEXITY ANALYSIS AND SOLUTIONS
Abstract
Given a network of receivers and transmitters, the process of determining their positions from measured pseudoranges is known as network self-calibration. In this paper we consider 2D networks with synchronized receivers but unsynchronized transmitters and the corresponding calibration techniques, known as Time-Difference-Of-Arrival (TDOA) techniques. Despite previous work, TDOA self-calibration is computationally challenging. Iterative algorithms are very sensitive to the initialization, causing convergence issues. In this paper, we present a novel approach, which gives an algebraic solution to two previously unsolved scenarios. We also demonstrate that our solvers produce an excellent initial value for non-linear optimisation algorithms, leading to a full pipeline robust to noise.
Year
DOI
Venue
2021
10.1109/ICASSP39728.2021.9414634
2021 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING (ICASSP 2021)
Keywords
DocType
Citations 
Time Difference of Arrival, Sensor Networks Calibration, Minimal Problems
Conference
0
PageRank 
References 
Authors
0.34
0
5
Name
Order
Citations
PageRank
Ferranti Luca100.34
Kalle Åström291495.40
Magnus Oskarsson319622.85
Jani Boutellier413725.36
Juho Kannala586760.91