The International Civil Aviation Organization (ICAO) has decided to adopt Communications, Navigation, and Surveillance/Air Traffic Management (CNS/ATM) as the 21st century standard for navigation. Accordingly, ICAO members have provided an impetus to develop related technology and build sufficient infrastructure. For aviation surveillance with CNS/ATM, Ground-Based Augmentation System (GBAS), A...

GRIPS (Generic Radio based Indoor Positioning System) is an indoor radio signal strength based positioning system. In order to track, locate and inform mobile users, GRIPS’ devices participate in WLAN/Bluetooth ad-hoc or access-point based wireless networks. Apart from its ability to track passive devices, it is possible to deploy the system in a spontaneous adhoc manner. With the help of cheap...

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.

Wide area multilateration algorithms suffer from stability issues related to the fact that reference points are nearly coplanar. This paper presents a method add elevation angle measurements problem and thereby reduce error perpendicular plane where taken. The resulting measurement is significantly reduced for co- planar coplanar points.

Most of the state-of-the-art localization algorithms in wireless sensor networks (WSNs) are vulnerable to attacks from malicious or compromised network nodes, whereas the secure localization schemes proposed so far are too complex to be applied to power constrained WSNs. This paper provides a novel secure scheme “Bilateration” which is derived from multilateration but can be calculated more acc...

The curse of outlier measurements in estimation problems is a well known issue in a variety of fields. Therefore, outlier removal procedures, which enables the identification of spurious measurements within a set, have been developed for many different scenarios and applications. In this paper, we propose a statistically motivated outlier removal algorithm for time differences of arrival (TDOAs...

In this paper, our main aim is to track the public buses in an area and update the information about the where abouts of the buses to passengers using GSM-based hybrid localization, that is multilateration and fingerprinting technology. A GSM modem will be able to get the CELL’s location and extract the received signal strength from the neighboring cells. By using the multilateration concept th...