Auto-localization algorithm for local positioning systems

作者：Guevara J^*; Jimenez A R; Prieto J C; Seco F

来源：Ad Hoc Networks, 2012, 10(6): 1090-1100.

DOI：10.1016/j.adhoc.2012.02.003

• Auto-localization
• Auto-calibration
• Local positioning systems
• Closed-form range-only solution

This paper studies the problem of determining the position of beacon nodes in Local Positioning Systems (LPSs), for which there are no inter-beacon distance measurements available and neither the mobile node nor any of the stationary nodes have positioning or odometry information. The common solution is implemented using a mobile node capable of measuring its distance to the stationary beacon nodes within a sensing radius. Many authors have implemented heuristic methods based on optimization algorithms to solve the problem. However, such methods require a good initial estimation of the node positions in order to find the correct solution. In this paper we present a new method to calculate the inter-beacon distances, and hence the beacons positions, based in the linearization of the trilateration equations into a closed-form solution which does not require any approximate initial estimation. The simulations and field evaluations show a good estimation of the beacon node positions.

• 出版日期2012-8