Search Results for author: Chung Choo Chung

Found 10 papers, 1 papers with code

Observer-Based Environment Robust Control Barrier Functions for Safety-critical Control with Dynamic Obstacles

no code implementations20 Mar 2024 Ying Shuai Quan, Jian Zhou, Erik Frisk, Chung Choo Chung

This paper proposes a safety-critical controller for dynamic and uncertain environments, leveraging a robust environment control barrier function (ECBF) to enhance the robustness against the measurement and prediction uncertainties associated with moving obstacles.

Uncertainty Quantification of Autoencoder-based Koopman Operator

no code implementations18 Sep 2023 Jin Sung Kim, Ying Shuai Quan, Chung Choo Chung

We approximate the Koopman operator in a finite-dimensional space with the autoencoder, while the approximated Koopman has an approximation uncertainty.

Uncertainty Quantification

RNN Controller for Lane-Keeping Systems with Robustness and Safety Verification

no code implementations16 Sep 2023 Ying Shuai Quan, Jin Sung Kim, Chung Choo Chung

This paper proposes a Recurrent Neural Network (RNN) controller for lane-keeping systems, effectively handling model uncertainties and disturbances.

Classification Method of Road Surface Condition and Type with LiDAR Using Spatiotemporal Information

no code implementations11 Aug 2023 Ju Won Seo, Jin Sung Kim, Chung Choo Chung

With the proposed DNN, we obtained the highest accuracy of 98. 0\% and 98. 6\% for two subregions near the vehicle.

A Nonlinear Proportional Integral Disturbance Observer and Motion Control Technique for Permanent Magnet Synchronous Motors

no code implementations9 Feb 2022 Yong Woo Jeong, Chung Choo Chung

In this paper, we present a Nonlinear-Proportional Integrator (N-PI) disturbance observer (DOB) to enhance the motion tracking of the performance of a surface-mounted Permanent Magnet Synchronous Motor (SPMSM) in rapidly speed varying regions.

Robust Control for Lane Keeping System Using Linear Parameter Varying Approach with Scheduling Variables Reduction

no code implementations3 May 2021 Ying Shuai Quan, Jin Sung Kim, Chung Choo Chung

In this paper, to reduce the computational complexity, Principal Component Analysis (PCA)-based parameter reduction is performed to obtain a reduced model with a tighter convex set.

Scheduling

Sequence-to-Sequence Prediction of Vehicle Trajectory via LSTM Encoder-Decoder Architecture

no code implementations18 Feb 2018 Seong Hyeon Park, ByeongDo Kim, Chang Mook Kang, Chung Choo Chung, Jun Won Choi

We employ the encoder-decoder architecture which analyzes the pattern underlying in the past trajectory using the long short-term memory (LSTM) based encoder and generates the future trajectory sequence using the LSTM based decoder.

Trajectory Prediction

Probabilistic Vehicle Trajectory Prediction over Occupancy Grid Map via Recurrent Neural Network

no code implementations24 Apr 2017 ByeoungDo Kim, Chang Mook Kang, Seung Hi Lee, Hyunmin Chae, Jaekyum Kim, Chung Choo Chung, Jun Won Choi

Our approach is data-driven and simple to use in that it learns complex behavior of the vehicles from the massive amount of trajectory data through deep neural network model.

Model Optimization Trajectory Prediction

Cannot find the paper you are looking for? You can Submit a new open access paper.