Universal kriging for Loran ASF map generation

PW Son, JH Rhee, J Hwang… - IEEE Transactions on …, 2018 - ieeexplore.ieee.org
After a series of intentional Global Positioning System (GPS) jamming attacks impacted a
large area of South Korea, the Ministry of Oceans and Fisheries of South Korea considers …

Dual-polarized GPS antenna array algorithm to adaptively mitigate a large number of interference signals

K Park, D Lee, J Seo - Aerospace Science and Technology, 2018 - Elsevier
Intentional or unintentional interference experienced by the Global Positioning System
(GPS) is a significant concern for GPS-based critical infrastructures and services including …

Motion planning by reinforcement learning for an unmanned aerial vehicle in virtual open space with static obstacles

S Kim, J Park, JK Yun, J Seo - 2020 20th International …, 2020 - ieeexplore.ieee.org
In this study, we applied reinforcement learning based on the proximal policy optimization
algorithm to perform motion planning for an unmanned aerial vehicle (UAV) in an open …

RSS-based LTE base station localization using single receiver in environment with unknown path-loss exponent

S Jeong, H Lee, T Kang, J Seo - 2020 International Conference …, 2020 - ieeexplore.ieee.org
With the increasing demand for location-based services, localization technology research
has recently intensified. Received signal strength (RSS)-based localization has the …

Indoor navigation algorithm based on a smartphone inertial measurement unit and map matching

T Kang, Y Shin - 2021 International Conference on Information …, 2021 - ieeexplore.ieee.org
We propose an indoor navigation algorithm based on pedestrian dead reckoning (PDR)
using an inertial measurement unit in a smartphone and map matching. The proposed …

SFOL DME pulse sha** through digital predistortion for high-accuracy DME

S Lee, E Kim, J Seo - IEEE Transactions on Aerospace and …, 2021 - ieeexplore.ieee.org
The Stretched-FrOnt-Leg (SFOL) pulse is a high-accuracy distance measuring equipment
(DME) pulse developed to support alternative positioning and navigation for aircraft during …

Effects of initial attitude estimation errors on loosely coupled smartphone GPS/IMU integration system

K Park, W Kim, J Seo - 2020 20th International Conference on …, 2020 - ieeexplore.ieee.org
Global Positioning System (GPS) and inertial measurement unit (IMU) sensors are
commonly integrated using the extended Kalman filter (EKF), for achieving better navigation …

Neural network-based ranging with LTE channel impulse response for localization in indoor environments

H Lee, AA Abdallah, J Park, J Seo… - … Conference on Control …, 2020 - ieeexplore.ieee.org
A neural network (NN)-based approach for indoor localization via cellular long-term
evolution (LTE) signals is proposed. The approach estimates, from the channel impulse …

Indoor path planning for an unmanned aerial vehicle via curriculum learning

J Park, S Jang, Y Shin - 2021 21st International Conference on …, 2021 - ieeexplore.ieee.org
In this study, reinforcement learning was applied to learning two-dimensional path planning
including obstacle avoidance by unmanned aerial vehicle (UAV) in an indoor environment …

Effect of outlier removal from temporal ASF corrections on multichain Loran positioning accuracy

J Park, PW Son, W Kim, JH Rhee… - 2020 20th International …, 2020 - ieeexplore.ieee.org
The widely used global navigation satellite systems (GNSSs) are vulnerable to radio
frequency interference (RFI). Long-range navigation (Loran), a terrestrial navigation system …