Jong‐Hoon Won
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View article: System Identification of Vehicle’s Lateral Dynamics for Open-Source Autonomous Driving Simulators
System Identification of Vehicle’s Lateral Dynamics for Open-Source Autonomous Driving Simulators Open
Open-source autonomous driving simulators (ADSs) are widely used in the design of autonomous driving algorithms. An accurate estimation of the lateral dynamics of vehicles is essential for accurately controlling an autonomous vehicle, wher…
View article: Speed and Path Planning Optimization of Autonomous Vehicle to Minimize Lap Time in Racing Track
Speed and Path Planning Optimization of Autonomous Vehicle to Minimize Lap Time in Racing Track Open
This study proposes a trajectory optimization method for racing vehicles, aiming to maximize speed and path planning performance by estimating tire friction coefficients. This method addresses the challenges inherent in high-speed racing e…
View article: Comprehensive Analysis of Acquisition Time for a Multi-Constellation and Multi-Frequency GNSS Receiver at GEO Altitude
Comprehensive Analysis of Acquisition Time for a Multi-Constellation and Multi-Frequency GNSS Receiver at GEO Altitude Open
The utilization of global navigation satellite systems (GNSSs) in the space service volume, such as the geostationary Earth orbit (GEO) altitude, has recently attracted significant interest owing to their potential advantages in performanc…
View article: Assessment of Radio Frequency Compatibility for New Radio Navigation Satellite Service Signal Design in the L6-Band
Assessment of Radio Frequency Compatibility for New Radio Navigation Satellite Service Signal Design in the L6-Band Open
The L- and S-bands are becoming increasingly congested with the modernization of radio navigation satellite service (RNSS) systems and the development of a new satellite navigation system. In order to solve the problem of frequency band co…
View article: GNSS Software-Defined Radio: History, Current Developments, and Standardization Efforts
GNSS Software-Defined Radio: History, Current Developments, and Standardization Efforts Open
Taking the work conducted by the global navigation satellite system (GNSS) software-defined radio (SDR) working group during the last decade as a seed, this contribution summarizes, for the first time, the history of GNSS SDR devel-opment.…
View article: Theoretical Upper and Lower Limits for Normalized Bandwidth of Digital Phase-Locked Loop in GNSS Receivers
Theoretical Upper and Lower Limits for Normalized Bandwidth of Digital Phase-Locked Loop in GNSS Receivers Open
Determining the loop noise bandwidth and the coherent integration time is essential and important for the design of a reliable digital phase-locked loop (DPLL) in global navigation satellite system (GNSS) receivers. In general, designers s…
View article: Virtual Lidar Sensor Intensity Data Modeling for Autonomous Driving Simulators
Virtual Lidar Sensor Intensity Data Modeling for Autonomous Driving Simulators Open
Autonomous driving simulators are an effective tool for developing autonomous driving algorithms so that they are widely used in research and development. However, the similarity of the virtual model to reality is closely related to the va…
View article: Table-Based Adaptive Digital Phase-Locked Loop for GNSS Receivers Operating in Moon Exploration Missions
Table-Based Adaptive Digital Phase-Locked Loop for GNSS Receivers Operating in Moon Exploration Missions Open
An adaptive digital phase-locked loop (DPLL) continually adjusts the noise bandwidth of the loop filter in global navigation satellite system (GNSS) receivers to track signals by measuring the signal-to-noise ratio and/or dynamic stress. S…
View article: Lidar- and V2X-Based Cooperative Localization Technique for Autonomous Driving in a GNSS-Denied Environment
Lidar- and V2X-Based Cooperative Localization Technique for Autonomous Driving in a GNSS-Denied Environment Open
Autonomous vehicles are equipped with multiple heterogeneous sensors and drive while processing data from each sensor in real time. Among the sensors, the global navigation satellite system (GNSS) is essential to the localization of the ve…
View article: Feasibility Analysis of GPS L2C Signals for SSV Receivers on SBAS GEO Satellites
Feasibility Analysis of GPS L2C Signals for SSV Receivers on SBAS GEO Satellites Open
This paper analyzes the feasibility of Global Positioning System (GPS) L2C signals for use with the space service volume (SSV) receiver on satellite-based augmentation system (SBAS) geostationary orbit (GEO) satellites equipped with L1 and…
View article: A Comprehensive Evaluation of Possible RNSS Signals in the S-Band for the KPS
A Comprehensive Evaluation of Possible RNSS Signals in the S-Band for the KPS Open
Recently, the Korean government has announced a plan to develop a satellite-based navigation system called the Korean Positioning System (KPS). When designing a new Radio Navigation Satellite Service (RNSS) signal, the use of the S-band ha…
View article: CCN1 coordinately regulates intestinal stem cell proliferation and differentiation through integrins αvβ3/αvβ5
CCN1 coordinately regulates intestinal stem cell proliferation and differentiation through integrins αvβ3/αvβ5 Open
Intestinal stem cells (ISCs) at the crypt base contribute to intestinal homeostasis through a balance between self-renewal and differentiation. However, the molecular mechanisms regulating this homeostatic balance remain elusive. Here we s…
View article: GNSS Signal Availability Analysis in SSV for Geostationary Satellites Utilizing multi-GNSS with First Side Lobe Signal over the Korean Region
GNSS Signal Availability Analysis in SSV for Geostationary Satellites Utilizing multi-GNSS with First Side Lobe Signal over the Korean Region Open
This paper verifies the applicability of multiple Global Navigation Satellite Systems (GNSSs) and side lobe signal utilization in Space Service Volume (SSV), especially for Geostationary Earth Orbit (GEO) missions over the Korean region. U…
View article: Improved position estimation method for locating an encrypted COSPAS‐SARSAT beacon
Improved position estimation method for locating an encrypted COSPAS‐SARSAT beacon Open
This study addresses a signal processing technique in a search and rescue system. An international disaster rescue communications support programme such as COSPAS‐ search and rescue satellite‐aided tracking (SARSAT) estimates the position …
View article: Analysis of multi‐constellation GNSS receiver performance utilizing 1‐st side‐lobe signal on the use of SSV for KPS satellites
Analysis of multi‐constellation GNSS receiver performance utilizing 1‐st side‐lobe signal on the use of SSV for KPS satellites Open
A numerical analysis is conducted for assessing the feasibility on the use of Global Navigation Satellite System (GNSS) receivers for Korea Positioning System (KPS) satellites in space service volume (SSV). KPS is planned to provide a navi…
View article: A novel population of extracellular vesicles smaller than exosomes promotes cell proliferation
A novel population of extracellular vesicles smaller than exosomes promotes cell proliferation Open
Our study identifies a novel population of EVs present in the P200 fraction. This EV population is distinguished from exosomes in size, protein contents, and biogenesis pathway. Furthermore, exosomes promote their own production whereas th…
View article: An ADAMTS Sol narae is required for cell survival in Drosophila
An ADAMTS Sol narae is required for cell survival in Drosophila Open
Cell survival is essential for all living organisms to cope against multiple environmental insults. Intercellular signaling between dying and surviving cells plays an important role to ensure compensatory proliferation, preventing tissue l…
View article: GNSS Cloud-Data Processing Technique for Jamming Detection and Localization
GNSS Cloud-Data Processing Technique for Jamming Detection and Localization Open
In this paper, assuming that a jammer is located in an area where a large number of low-cost GNSS receivers are densely distributed over and their received signals are gathered into a central processing unit like a cloud-data, we propose a…
View article: Performance analysis of geometry‐free and ionosphere‐free code–carrier phase observation models in integer ambiguity resolution
Performance analysis of geometry‐free and ionosphere‐free code–carrier phase observation models in integer ambiguity resolution Open
Geometry‐free linear combination of dual‐frequency signal code and carrier phase observations have been used for multiple purpose such as to remove ionosphere‐delays, improve the success rate in integer ambiguity resolution and accuracy in…
View article: Cell Type-Specific Responses to Wingless, Hedgehog and Decapentaplegic Are Essential for Patterning Early Eye-Antenna Disc in Drosophila
Cell Type-Specific Responses to Wingless, Hedgehog and Decapentaplegic Are Essential for Patterning Early Eye-Antenna Disc in Drosophila Open
The Drosophila eye-antenna imaginal disc (ead) is a flattened sac of two-layered epithelia, from which most head structures are derived. Secreted morphogens like Wingless (Wg), Hedgehog (Hh), and Decapentaplegic (Dpp) are important for ear…