The possible existence of intermediate mass binary black holes (IMBBHs) in globular clusters (GCs) offers a unique geometry in which to detect space-time oscillations. For certain pulsar-IMBBH configurations possible within a GC, the usual far-field plane wave approximation for the IMBBH metric perturbation severely underestimates the magnitude of the induced pulsar pulse time-of-arrival (TOA) ...

Localization plays an important role in robotics for the tasks of monitoring, tracking and controlling a robot. Much effort has been made to address robot localization problems in recent years. However, despite many proposed solutions and thorough consideration, in terms of developing a low‐cost and fast processing method for multiple‐source signals, the robot locali...

This work combines compressive sensing and short word-length techniques to achieve localization target tracking in wireless sensor networks with energy-efficient communication between the network anchors fusion center. Gradient descent is performed using time-of-arrival (TOA) data which are indicative of distance thereby achieving range-based localization. The considered delta modulation sigma-...

Two techniques which are important in the passive detection of radars are the time-diierence of arrival (TDOA) histogram and time of arrival (TOA) folding. The methods are designed to highlight and resolve periodicities in the radar pulse time of arrival data so that pulses from diierent radars can be separated. However, both methods exhibit interference eeects which resemble \noise oors." We s...

This paper presents an approach for a precise 2D-localization of a mobile station in indoor scenarios by one single base station only. In the approach both, the Direction of Arrival (DoA) and the Time of Arrival (ToA), are estimated using UWB beamformers at both sides of the link. The article describes the algorithm, as well as the required hardware. A duallinear polarized, directive UWB antenn...

A correlation-based double-directional stochastic channel model for indoor multiple-input multiple-output (MIMO) ultra-wideband (UWB) propagation channels is proposed. The proposed model extends the IEEE 802.15.3a standard model to spatially correlated MIMO channels. Both angular and temporal statistics are taken into account in the modelling procedure. Spatial correlation is introduced into th...

Localization of Wireless Capsule Endoscope (WCE) inside the small intestine is a very challenging problem, which is very important for the diagnosis of certain diseases. Previous studies have shown that Time-of-Arrival (TOA) localization can be more effective than Received Signal Strength (RSS) based localization. Performance evaluation of TOA-based localization techniques for WCE requires unde...

In this paper, we consider a time-varying optimization approach to the problem of tracking moving target using noisy time-of-arrival (TOA) measurements. Specifically, formulate as that sequential TOA-based source localization and apply online gradient descent (OGD) it generate position estimates target. To analyze performance OGD, first revisit classic least-squares formulation (static) elucida...

Source localization plays a key role in many applications including radar, wireless and underwater communications. Among various methods, the most popular ones are Time-Of-Arrival (TOA), Time-Difference-Of-Arrival (TDOA), Angle-Of-Arrival (AOA) Received Signal Strength (RSS) based. Since Cramér-Rao lower bounds (CRLB) of these methods depend on sensor geometry explicitly, placement becom...

This paper presents a method for estimating the time of arrival (ToA) long term evolution (LTE) signals received on multiple separate transmission bands by same base station (BS) mast. By exploiting overall bandwidth occupied different and correlation between corresponding channel impulse responses, higher precision is achieved with respect to usually adopted single-band approach whenever time-...