Search Results for author: Hongchao Zhang

Found 6 papers, 1 papers with code

Fault Tolerant Neural Control Barrier Functions for Robotic Systems under Sensor Faults and Attacks

1 code implementation28 Feb 2024 Hongchao Zhang, Luyao Niu, Andrew Clark, Radha Poovendran

Control barrier function (CBF)-based approaches have been proposed to guarantee the safety of robotic systems.

Cooperative Perception for Safe Control of Autonomous Vehicles under LiDAR Spoofing Attacks

no code implementations14 Feb 2023 Hongchao Zhang, Zhouchi Li, Shiyu Cheng, Andrew Clark

In this paper, we propose an approach to detect and mitigate LiDAR spoofing attacks by leveraging LiDAR scan data from other neighboring vehicles.

Autonomous Vehicles Fault Detection

Barrier Certificate based Safe Control for LiDAR-based Systems under Sensor Faults and Attacks

no code implementations11 Aug 2022 Hongchao Zhang, Shiyu Cheng, Luyao Niu, Andrew Clark

We prove that the synthesized control input guarantees system safety using control barrier certificates.

Safety-Critical Control Synthesis for Unknown Sampled-Data Systems via Control Barrier Functions

no code implementations28 Sep 2021 Luyao Niu, Hongchao Zhang, Andrew Clark

By satisfying the constructed CBF constraint at each sampling time, we guarantee the unknown sampled-data system is safe for all time.

Generalized Uniformly Optimal Methods for Nonlinear Programming

no code implementations29 Aug 2015 Saeed Ghadimi, Guanghui Lan, Hongchao Zhang

In a similar vein, we show that some well-studied techniques for nonlinear programming, e. g., Quasi-Newton iteration, can be embedded into optimal convex optimization algorithms to possibly further enhance their numerical performance.

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