Results 61 to 70 of about 150,096 (147)

A method for estimating songbird abundance with drones

Drone Systems and Applications, 2022
Using drones to conduct airborne bioacoustics surveys is a potentially useful new way to estimate the abundance of vocal bird species. Here we show that by using two audio recorders suspended from a quadcopter drone it is possible to estimate distances ...
Andrew M. Wilson, Darren B. Glass, Marisa A. Immordino, Precious S. Ozoh, Lauren B. Sherman, McKenzie D. Somers   +5 more
doaj   +1 more source

TDOA based positioning in the presence of unknown clock skew [PDF]

, 2013
Cataloged from PDF version of article.This paper studies the positioning problem of a single target node based on time-difference-of-arrival (TDOA) measurements in the presence of clock imperfections.
Gezici, S., Gholami, M. R., Strom, E. G.
core   +1 more source

An algebraic method for moving source localization using TDOA, FDOA, and differential Doppler rate measurements with receiver location errors

EURASIP Journal on Advances in Signal Processing, 2019
To weaken the effect of receiver location error on localization accuracy and make the localization model closer to the practical scenario, this paper considers the receiver location errors, usually neglected in prior studies into the measurement model ...
Zhixin Liu, Dexiu Hu, Yongsheng Zhao, Yongjun Zhao   +3 more
doaj   +1 more source

Time-Difference-of-Arrival Estimation Based on Cross Recurrence Plots, with Application to Underwater Acoustic Signals

, 2016
International audienceThe estimation of the time difference of arrival (TDOA) consists of the determination of the travel-time of a wavefront between two spatially separated receivers , and it is the first step of processing systems dedicated to the ...
Gervaise, Cedric, Le Bot, Olivier, Mars, Jerome,   +2 more
core   +3 more sources

FPGA basierte, konfigurierbare OFDM Sender-Plattform für die Positionsbestimmung mittels TDoA [PDF]

, 2010
Für die Evaluierung von Algorithmen zur Positionsbestimmung nach dem Time Difference of Arrival – Verfahren wird eine frei konfigurierbare OFDM Sender-Plattform benötigt.
Brachtendorf, H. G., Dammann, A., Dichler, W., Fröhlich, H., Jungreithmeier, J. A., Klein, C., Klopf, A., Staudinger, E.   +7 more
core  

Beamforming Design for Joint Localization and Data Transmission in Distributed Antenna System

, 2014
A distributed antenna system is studied whose goal is to provide data communication and positioning functionalities to Mobile Stations (MSs). Each MS receives data from a number of Base Stations (BSs), and uses the received signal not only to extract the
Haimovich, Alexander, Jeong, Seongah, Kang, Joonhyuk, Simeone, Osvaldo   +3 more
core   +1 more source

Distributed localization of a RF target in NLOS environments

, 2014
We propose a novel distributed expectation maximization (EM) method for non-cooperative RF device localization using a wireless sensor network. We consider the scenario where few or no sensors receive line-of-sight signals from the target. In the case of
Leng, Mei, Quitin, Francois, Razul, Sirajudeen G., Tay, Wee Peng, Xu, Wenjie   +4 more
core   +1 more source

The Time Difference of Arrival Estimation Method Utilizing an Inexact Reconstruction Within the Framework of Compressed Sensing

Remote Sensing
The time difference of arrival (TDOA) estimation plays a crucial role in emitter localization and time synchronization applications. When time among multiple sensors is synchronized, the TDOAs between the sensors and the emitter can be measured to ...
Shanhe Wang, Yu Xiang, Yuanyuan Gao, Yu Hua, Changjiang Huang, Xian Zhao   +5 more
doaj   +1 more source

Cross Recurrence Plot Analysis Based Method For TDOA Estimation Of Underwater Acoustic Signals

, 2015
International audience—In this paper, we propose to use cross recurrence plot analysis (CRPA) to estimate the time-difference of arrival (TDOA) of underwater acoustic signals arriving on an array of hydrophones.
Gervaise, Cedric, Le Bot, Olivier, Mars, Jerome,, Simard, Yvan   +3 more
core   +2 more sources

Ultra-Wideband Time-Difference-of-Arrival High Resolution 3D Proximity Tracking System [PDF]

This paper describes a research and development effort for a prototype ultra-wideband (UWB) tracking system that is currently under development at NASA Johnson Space Center (JSC).
Arndt, Dickey, Dekome, Kent, Dusl, John, Ngo, Phong, Ni, Jianjun, Phan, Chau   +5 more
core   +1 more source