Results 61 to 70 of about 4,556 (294)

Robust Partially Strong Tracking Extended Consider Kalman Filtering for INS/GNSS Integrated Navigation

IEEE Access, 2019
Unknown biases or perturbations in the INS/GNSS integrated navigation system may produce unforeseeable negative effects when the navigation states are estimated by using the Kalman filtering and its variants.
Tai-Shan Lou, Nan-Hua Chen, Zhi-Wu Chen, Xiao-Lei Wang   +3 more
doaj   +1 more source

A 3D Attitude Estimation Method Based on Attitude Angular Partial Feedback for Polarization-Based Integrated Navigation System

Sensors, 2022
Polarization (POL) navigation is inspired by insects’ behavior of precepting celestial polarization patterns to orient themselves. It has the advantages of being autonomous and having no accumulative error, which allows it to be used to correct the ...
Pengwei Hu, Panpan Huang, Zhenbing Qiu, Jian Yang, Xin Liu   +4 more
doaj   +1 more source

Deciphering transcriptional plasticity in pancreatic ductal adenocarcinoma reveals alterations in sensory neuron innervation

Molecular Oncology, EarlyView.
Pancreatic sensory neurons innervating healthy and PDAC tissue were retrogradely labeled and profiled by single‐cell RNA sequencing. Tumor‐associated innervation showed a dominant neurofilament‐positive subtype, altered mitochondrial gene signatures, and reduced non‐peptidergic neurons.
Elena Genova, Michele Montrone, Uday Rangaswamy, Francesco Diversi, Irene Schiavo, Denise Ferrarini, Roberta Di Florio, Irene Longo, Michele Coscia, Nicola Zamboni, Giorgia Demontis, Lisa Veghini, Vincenzo Corbo, Remo Sanges, Paul Heppenstall   +14 more
wiley   +1 more source

Research on UAV UWB/IMU Tight Integrated Navigation and Positioning Algorithm

Journal of Harbin University of Science and Technology
Navigation and positioning technology is the core technology for UAV to perform tasks stably. In this paper, the tight integrated navigation algorithm of Inertial Navigation System (INS) and Ultra Wide Band (UWB) is studied to meet the needs of UAV ...
HUANG Junbo, LUO Zhexuan, LI Junpeng, JIN Tao, YU Zhilong   +4 more
doaj   +1 more source

Optical and Mass Flow Sensors for Aiding Vehicle Navigation in GNSS Denied Environment

Sensors, 2020
Nowadays, autonomous vehicles have achieved a lot of research interest regarding the navigation, the surrounding environmental perception, and control.
Mohamed Moussa, Shady Zahran, Mostafa Mostafa, Adel Moussa, Naser El-Sheimy, Mohamed Elhabiby   +5 more
doaj   +1 more source

UAV Swarm Navigation Using Dynamic Adaptive Kalman Filter and Network Navigation

Sensors, 2021
Aiming to improve the positioning accuracy of an unmanned aerial vehicle (UAV) swarm under different scenarios, a two-case navigation scheme is proposed and simulated.
Jingjuan Zhang, Wenxiang Zhou, Xueyun Wang   +2 more
doaj   +1 more source

Metastasis on pause: How dormant tumor cells stay hidden within the tumor microenvironment and evade immune surveillance

Molecular Oncology, EarlyView.
Dormant cancer cells can hide in distant organs for years, evading treatment and the immune system. This review highlights how signals from the surrounding tissue and immune environment keep these cells inactive or trigger their reawakening. Understanding these mechanisms may help develop therapies to eliminate or control dormant cells and prevent ...
Kanishka Tiwary, Jose Javier Bravo‐Cordero   +1 more
wiley   +1 more source

ATENEA: Advanced techniques for deeply integrated GNSS/INS/LiDAR navigation

, 2010
The ATENEA (Advanced Techniques for Navigation Receivers and Applications) project aims to join deeply integrated GNSS/INS receiver architectures and LIDAR techniques to provide an advanced navigation solution.
Dovis, Fabio, A. Fernandez, De Castro, D., Fernández, I., I. Colomina, Diez, J., Pares, E., D. de Castro, Fernández A., Friess P., Friess, P., M. Wis, Fernández I., P. Friess, Wis, M., J. Lindenberger, Lindenberger, J., Colomina I., E. Pares, Silva P. F., Colomina, I., P. F. Silva, de Castro D., Lindenberger J., Diez J., Wis M., Silva, P.F., Fernández, A., I. Fernandez, J. Diez   +29 more
core   +1 more source

A Robust Fusion Methodology for MEMS-Based Land Vehicle Navigation in GNSS-Challenged Environments

IEEE Access, 2020
How to effectively blend global navigation satellite system (GNSS) and inertial navigation system (INS) data to achieve an optimal solution in harsh environments has always been an urgent task.
Song Yue, Li Cong, Honglei Qin, Bin Li, Jintao Yao   +4 more
doaj   +1 more source

Visual-Inertial Navigation System based on a New approach in Tracking and Investigating the Image Feature Points [PDF]

فصلنامه علوم و فناوری فضایی, 2019
In the last decades, the visual navigation system has been investigated by many researchers as an aided navigation system for Inertial Navigation System (INS) in the Unmanned Aerial Vehicles (UAV).
Mohammadvali Arbabmir, Masoud Ebrahimi Kachoei   +1 more
doaj   +1 more source