Results 51 to 60 of about 18,207 (144)

Dead Reckoning Method for an Unmanned Aerial Vehicle in Conditions of Limited GPS Signal [PDF]

TransNav
The article presents a dead reckoning navigation method dedicated to unmanned aerial vehicles (UAVs), enabling position determination under limited GNSS signal access. The method is based on the analysis of data from inertial measurement units (IMUs) and
Bartlomiej Szykula, Janusz Furtak
doaj   +1 more source

Outcomes and Surgical Management of Malignant Rhabdoid Tumor of the Kidney: A Report From the Pediatric Surgical Oncology Research Collaborative

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Purpose Malignant rhabdoid tumor of the kidney (MRTK) is a rare, aggressive tumor seen in young children. The optimal timing of resection for locally advanced tumors is not well‐defined. The purpose of this study is to evaluate modern oncologic outcomes and the impact of surgical timing. Methods A multicenter retrospective review was performed
Hannah N. Rinehardt, Elisabeth T. Tracy, Anghela Paredes, Catherine Beckhorn, Harold J. Leraas, Joseph Fusco, Katlyn G. McKay, Nelly‐Ange T. Kontchou, Zachary J. Kastenberg, David W. Hoyt, Jonathan Roach, Emily K. Myers, Nicholas G. Cost, Bhargava Mullapudi, Charles R. Marchese, Amanda R. Jensen, Timothy B. Lautz, Michela Carter, Roshni Dasgupta, John Lundstedt, Joseph G. Brungardt, Lindsay Talbot, Andrew M. Davidoff, Andrew J. Murphy, Jennifer H. Aldrink, Sara Mansfield, Nelson Piche, Annie Le‐Nguyen, Dave R. Lal, Brian T. Craig, Jennifer M. Schuh, Barrett P. Cromeens, Sindhu Mannava, Shannon Castle, Adriana Lopez, Kelsey Mello, Joshua Short, Robin T. Petroze, Shay Rajaval, Grace R. Thompson, Peter Mattei, David H. Rothstein, Elizabeth Fialkowski, Kathryn Fowler, Nathan Martchenke, Barrie S. Rich, Richard D. Glick, Erin G. Brown, Kathleen Doyle, Paige Abril, Natashia Seemann, Jacob Davidson, Claire A. Wilson, Hau D. Le, Devashish Joshi, Michael Stellon, Tamer Ahmed, Alexandra Dimmer, Peter F. Ehrlich, Maya Hammoud, Keyonna Williams, Christa N. Grant, Merit Gorgy, Stephanie F. Polites, Julia Debertin, Danielle B. Cameron, Alyssa Stetson, Eugene S. Kim, William G. Lee, Aaron Barkhordar, Mary Austin, Brian A. Coakley, Anastasia Kahan, Joseph T. Murphy, Michael Pitonak, Chloé Boehmer, Marcus M. Malek   +76 more
wiley   +1 more source

Precise Localization of Mobile Robots via Odometry and Wireless Sensor Network

International Journal of Advanced Robotic Systems, 2013
Precise localization of mobile robots in uncertain environments is a fundamental and crucial issue in robotics. In this paper, to deal with the unbounded accumulated errors of dead reckoning (DR)-based localization, wireless sensor network (WSN)-based ...
Guoyu Fu, Jin Zhang, Wenyuan Chen, Fengchao Peng, Pei Yang, Chunlin Chen   +5 more
doaj   +1 more source

A Robust Dead Reckoning Algorithm Based on Wi-Fi FTM and Multiple Sensors

Remote Sensing, 2019
More and more applications of location-based services lead to the development of indoor positioning technology. Wi-Fi-based indoor localization has been attractive due to its extensive distribution and low cost properties. IEEE 802.11-2016 now includes a
Yue Yu, Ruizhi Chen, Liang Chen, Guangyi Guo, Feng Ye, Zuoya Liu   +5 more
doaj   +1 more source

3DupIC: An Underwater Scan Matching Method for Three-Dimensional Sonar Registration

Sensors, 2022
This work presents a six degrees of freedom probabilistic scan matching method for registration of 3D underwater sonar scans. Unlike previous works, where local submaps are built to overcome measurement sparsity, our solution develops scan matching ...
António Ferreira, José Almeida, Alfredo Martins, Aníbal Matos, Eduardo Silva   +4 more
doaj   +1 more source

Beyond rings on birds for determination of movements: Wither the archival tag? [PDF]

, 2001
Two methods for determining the movement of birds are discussed; Global Location Sensing (determination of position by consideration of day length and local timing of mid-day) and dead reckoning (calculation of routes by vectors).
Wilson, Rory P.
core  

AUV SLAM and experiments using a mechanical scanning forward-looking sonar [PDF]

, 2012
Navigation technology is one of the most important challenges in the applications of autonomous underwater vehicles (AUVs) which navigate in the complex undersea environment.
ArulamPalam, Blanco, Bo He, Bosse, Durrant-Whyte, Durrant-Whyte, Guivant, He, He, Kwak, Kwak, Leonard, Maybeck, Minghui Li, Murphy, Rui Nian, Schon, Shujing Zhang, Smith, Smith, Thrun, Thrun, Thrun, Tianhong Yan, Walter, Wilfong, Xiao Feng, Yan Liang, Zhang, Zhou   +29 more
core   +4 more sources

Rail Vehicle Localization Exploiting Rail Track Georeferenced Coordinates

U.Porto Journal of Engineering, 2015
A novel dead reckoning algorithm conceived for localization of small inspection rail vehicles in Global Navigation Satellite System (GNSS) denied environments is presented.
António João Ferreira, José Miguel Almeida, Eduardo Silva   +2 more
doaj   +1 more source

An Indoor Pedestrian Positioning Algorithm Based on Smartphone Sensor [PDF]

Jisuanji gongcheng, 2016
Advances on smartphones and built-in inertial sensors have given rise to pedestrian dead reckoning using smartphone sensors.However,an accurate Pedestrian Dead Reckoning(PDR) system using smartphone sensors is not available yet,for smartphone sensors are
ZHOU Rui,LUO Lei,LI Zhiqiang,SANG Nan
doaj   +1 more source

Enhanced Pedestrian Dead Reckoning Sensor Fusion for Firefighting

Engineering Proceedings, 2023
Knowing the exact position of firefighters in a building during an indoor firefighting operation is critical to improving the efficiency and safety of firefighters.
Tobias Augustin, Daniel Ossmann
doaj   +1 more source