Results 101 to 110 of about 138,574,001 (211)

Robust Indoor Positioning with Smartphone by Utilizing Encoded Chirp Acoustic Signal

Sensors
Recently, indoor positioning has been one of the hot topics in the field of navigation and positioning. Among different solutions on indoor positioning, positioning with acoustic signals has its promise due to its relatively high accuracy in the line of ...
Bingbing Cheng, Ying Huang, Chuanyi Zou
doaj   +1 more source

Moyal deformation of the classical arrival time [PDF]

The quantum time of arrival (TOA) problem requires the statistics of measured arrival times given only the initial state of a particle. Following the standard framework of quantum theory, the problem translates into finding an appropriate quantum image ...
Galapon, Eric A., Pablico, Dean Alvin L.
core  

Fingerprint localization based on hybrid TOA, AOA, and RSS measurements

Discover Applied Sciences
This paper presents a novel joint TOA-AOA-RSS fingerprint localization method aimed at reducing the necessity for collecting extensive fingerprint data for database construction.
Shuiwei Liu, Lei Tang, Zhangsheng Wang
doaj   +1 more source

Non-identifiability of the two state Markovian Arrival process [PDF]

In this paper we consider the problem of identifiability of the two-state Markovian Arrival process (MAP2). In particular, we show that the MAP2 is not identifiable and conditions are given under which two different sets of parameters, induce identical ...
Michael P. Wiper, Rosa E. Lillo, Pepa Ramirez   +2 more
core  

Time of arrival based location estimation for cooperative relay networks

, 2010
In this paper, we investigate the performance of a cooperative relay network performing location estimation through time of arrival (TOA). We derive Cramer-Rao lower bound (CRLB) for the location estimates using the relay network.
Syed I. Hussain, Qaraqe, Khalid A., Çelebi, Hasari Burak, Hussain, Syed Imtiaz, Abdallah, Mohamed M., Alouini, Mohamed-Slim, Hasari Celebi, Mohamed-Slim Alouini, Khalid A. Qaraqe, Mohamed Abdallah   +9 more
core   +1 more source

The role of conjugacy in the dynamics of time of arrival operators [PDF]

The construction of time of arrival (TOA) operators canonically conjugate to the system Hamiltonian entails finding the solution of a specific second-order partial differential equation called the time kernel equation (TKE).
Galapon, Eric A., Pablico, Dean Alvin L., Magadan, John Jaykel P., Arguelles, Carl Anthony L.   +3 more
core   +1 more source

TOA estimation of UWB backscattering RFID tag with dual pulse modulation for clutter suppression

, 2010
To realize precise localization for UWB backscattering RFID system, the arrival time of the direct path in the received signal (referred as time of arrival (TOA)) needs to be accurately estimated.
Choi L. Law, Law, Choi Look, Xu, Chi, Chi Xu   +3 more
core   +1 more source

Determining times of arrival of transponder signals in a sensor network using GPS time synchronization

, 2011
In this paper, obtaining time of arrival (TOA) measurements in a sensor network is investigated. Differentiating these TOA measurements provides the Time Difference of Arrival (TDOA) measurements between sensor pairs.
Steffes, Christian, Sven Rau, Kaune, Regina   +2 more
core  

An indoor positioning system based on distributed LTE network

Dianxin kexue, 2018
Indoor positioning technology has important applications in the business and security fields,but there are still existing problems with low positioning accuracy and high deployment costs.An indoor positioning system based on long term evolution ( LTE ...
Yu YANG, Ming CHEN, Daqing LIU
doaj   +2 more sources

TOA Estimator for UWB Backscattering RFID System with Clutter Suppression Capability

EURASIP Journal on Wireless Communications and Networking, 2010
Time of arrival (TOA) estimation in multipath dense environment for UWB backscattering radio frequency identification (RFID) system is challenging due to the presence of strong clutter.
Xu Chi, Law ChoiL
doaj