High-Accuracy TDOA-Based Localization without Time Synchronization

Demo Abstract: Whistle - Synchronization-Free TDOA for Localization

TDoA-based Localization Using Enhanced Multilateration

For the IPSN 2016 Microsoft indoor localization competition, we propose a system based on uplink TDoA using commerically available hardware from Nanotron and a proprietary multilateration algorithm.

Mobility-Assisted Node Localization Based on TOA Measurements Without Time Synchronization in Wireless Sensor Networks

Wireless sensor networks (WSNs) have been proposed for a multitude of location-dependent applications. To stamp the collected data and facilitate communication protocols, it is necessary to identify the location of each sensor. In this paper, we discuss the performance of two novel positioning schemes, which use two generalized geometrical localization algorithms to achieve an accurate estimati...

Polynomial-time approximation algorithms for anchor-free TDoA localization

We consider the problem of anchor-free self-calibration of receiver locations using only the reception time of signals produced at unknown locations and time points. In our settings the receivers are synchronized, so the time differences of arrival (TDoA) of the signals arriving at the receivers can be calculated. Given the set of distinguishable time points for all receivers the task is to det...

A graph-based approach to assist TDOA based localization

In multidimensional source localization based on time difference of arrival (TDOA), it is difficult to identify the direct-path TDOA among all TDOA estimates of one sensor pair and to find the corresponding TDOA values belonging to the same source among different sensor pairs. In this paper, we present a graph based approach to solve this problem. It relies on the concept of consistent graph wh...