In this work, we address the problem of tracking an acoustic source based on measured time differences of arrival (TDOA). The classical solution to this problem consists in using a detector, which estimates the TDOA for each microphone pair, and then applying a tracking algorithm, which integrates the “measured” TDOAs in time. Such a two-stage approach presumes 1) that TDOAs can reliably be est...

This paper presents a novel Time Difference of Arrival (TDoA) estimation algorithm for mobile station positioning in Universal Mobile Telecommunication System (UMTS) based on cell search procedure defined by 3GPP. Standardized method for Time Difference of Arrival (TDoA) measurement and cell search procedure are stated. Furthermore, proposed solution for TDoA parameter estimation via multichann...

Time difference of arrival (TDOA) technology has been widely used in positioning and navigation system recently. The position estimation of a source through determining time difference of arrival (TDOA) of its signal among distributed sensors has many applications in civil as well as in the military. According to civil aspect, in mobile communication is widely used TDOA to perform location of c...

Microphone arrays can be employed for passive acoustic source localization using time difference of arrival (TDOA) estimates in microphone pairs. The most common method for this TDOA estimation is the generalized crosscorrelation (GCC) method which is also used in this work. In an office room environmental noise influences and reverberation effects complicate the TDOA estimation and aggravate a...

This paper investigates passive emitter tracking using a combination of Time Difference of Arrival (TDOA) measurements with further different types of measurements. The measurements are gained by exploiting the signal impinging from an unknown moving emitter. First, a combined set of TDOA and Angle of Arrival (AOA) measurements is processed using the Maximum Likelihood Estimator (MLE). Then, a ...

This paper proposes a mobile user location scheme for wideband code-division multiple-access (CDMA) wireless communication systems. To achieve high location accuracy and low cost of the mobile receiver, the location scheme combines the time difference of arrival (TDOA) measurements from the forward link pilot signals with the angle of arrival (AOA) measurement from the reverse link pilot signal...

The robust three-dimensional position architecture is proposed in the paper, where the hybrid time difference of arrival (TDOA) and direction of arrival (DOA) position system was designed to backup the four-station TDOA position system. The digital time delay estimation (TDE) receiver is used for TDOA measurement and the cylindrical array antenna is used for DOA measurement. The general formula...

For the purpose of source localization, we have proposed a constrained weighted least squares (CWLS) source localization method in our companion paper, which uses static sensors by accounting for random uncertainties in sensor positions. This paper is devoted to developing two recursive algorithms to deal with the source localization problem by using time difference of arrival (TDOA) measuremen...

An airport surface multilateration system based on the time difference of arrival (TDOA) positioning principle establishes equations to calculate the position of target through utilizing the TDOA of targets’ answering signals to the ground receiving stations. The fault with any ground receiving station will result in a significant measuring error of signal’s arrival time and have a lethal impac...