2 Measurement Types and Performance Bounds 4 2.1 Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.1.1 Nuisance Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.2 Cramér-Rao Bounds for Localization . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.2.1 TOA, TDOA, and Distances . . . . . . . . . . . . . . . . . ....

This paper ties together and extends several recent results we have presented. We previously showed: (i) the usefulness of non-MSE distortion criteria in data compression for time-difference-of-arrival (TDOA) emitter location (SPIE 2001 & 2002), and (ii) the ability to exploit redundancy between radar pulses in a joint TDOA/FDOA (frequency-difference-of-arrival) location scheme (SPIE 2001 & 200...

Digital multimedia broadcasting signal is promised to be a wireless positioning signal. This paper mainly studies a multimedia broadcasting technology, named China mobile multimedia broadcasting (CMMB), in the context of positioning. Theoretical and practical analysis on the CMMB signal suggests that the existing CMMB signal does not have the meter positioning capability. So, the CMMB system ha...

The Federal Communications Commission (FCC) has adopted regulations requiring wireless communication service providers to provide position location (PL) information for a user requesting E-911 service. The Time Difference of Arrival (TDOA) technique is one of the most promising position location techniques for cellular-type wireless communication systems. The IS-95 Code Division Multiple Access...

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...

of thesis CONSTANT FALSE ALARM RATE PERFORMANCE OF SOUND SOURCE DETECTION WITH TIME DELAY OF ARRIVAL ALGORITHM Time Delay of Arrival (TDOA) based algorithms and Steered Response Power (SRP) based algorithms are two most commonly used methods for sound source detection and localization. SRP is more robust under high reverberation and multi-target conditions, while TDOA is less computationally in...

In the course of this paper, a by IFEN GmbH developed integrated navigation device for aiding and rescuing fire fighters in emergency situations is presented. In areas with sufficient signal strength the respective rescue force is tracked by means of GNSS/INS position information, whereas indoor or in areas without GNSS support, the positioning is conducted by means of a foot mounted inertial m...

Local Positioning Systems (LPS) are supposing an attractive research topic over the last few years. LPS ad-hoc deployments of wireless sensor networks for particularly adapt to environment characteristics in harsh environments. Among LPS, those based on temporal measurements stand out their trade-off among accuracy, robustness and costs. But, regardless architecture considered, optimization dis...

The continuous rise of mobile technology in everyday life has led to an increasing demand for location-based services for handheld applications and autonomous systems. In recent time, a shift of interest towards indoor localization can be observed where global navigation satellite systems, such as the Global Positioning System, are mostly not available. The hardware for positioning and navigati...