Several techniques aimed to perform lightning location has been proposed on literature, most of them are based on using the time difference of arrival (TDOA) of electric signals to a set of sensors. These techniques often perform simplifications to the location problem, in order to deal with its complexity. This paper shows an approach based on the Takagi-Sugeno's fuzzy inference system [4], wh...

Recent advancement in wireless networks and systems has seen the rise of localization techniques as a worthwhile and cost-effective basis for novel services. These location based services (LBSs) have been more and more beneficial and money-making for telecommunications operators and companies. Various LBSs can be offered to the user such as tracking, advertisement, security, and management. Wir...

In the unmanned ground vehicle (UGV) case, the estimation of a future position with a present one is one of the most important techniques (Madhavan & Schlenoff, 2004). Generally, the famous global positioning system (GPS) has been widely used for position tracking because of its good performance (Torrieri, 1984; Kim et al., 2006). However, there exist some defects. For example, it needs a separ...

There are diverse areas of application for the acoustic scene analysis, consisting of localization and identification of acoustically observable sound sources. In particular, the man-machine interaction in the broadest sense is of peculiar interest. In this paper a method for the passive acoustic localization of sound sources using time difference of arrival (TDOA) estimates in microphone pairs...

Locating accurate positions of the nodes is normally required in Sensor Networks which are attempting to locate and track an emitter or sources of signals. GPS is normally used as it provides high accuracy position measurement, but it has its own limitations. In this paper, we propose a Bandwidth Efficient TDOA (Time difference of arrival) Computation using OFDM for Sensor Networks. Simulation ...

The partial discharge (PD) leads to catastrophic failure of the medium voltage (MV) switchgear insulation. Determination PD source (defect) location in high (HV) equipment is very important maintenance procedures and isolating root cause generation. In this paper, transient earth (TEV) detection method was used acquire defect-initiated signals a simulated MV model. An array four TEV sensors wer...

The US Federal Communications Commission (FCC) has mandated wireless network operators and mobile devices to provide accurate location information for E-911. Requirements for time of arrival (TOA) and time difference of arrival (TDOA) measurements have been specified in 3GPP LTE Rel. 9 to ensure accurate user equipment (UE) positioning even under bad conditions (e.g. with channel quickly varyin...

In this work, we investigate a dimensionality reduction scheme to use Time Delay of Arrival(TDOA) features across all microphones in a traditional HMM/GMM system. The subspace dimension is selected based on dimension of the TDOA vectors in an ideal recording, i.e., without environmental distortion or interference. Experiments in a dataset used in NIST Meeting Diarization evaluation reveal that ...

Abstract By utilizing the time difference of arrival (TDOA), frequency (FDOA), and differential Doppler rate (DDR) measurements from sensors, this paper proposes an effective moving source localization algorithm with closed solutions. Instead employing traditional two-step weighted least squares (WLS) process, Lagrange multiplier technique is employed in first step to obtain initial solution. T...

The inspection of bridges is currently made by visual inspection or by wired sensor techniques, which are relatively expensive, vulnerable to damage, and time consuming to install. In contrast, wireless sensor networks are easy to deploy and flexible in application so that the network can adjust to the individual structure. Different sensing techniques can be used with such a network, but acous...