Charles C. Chang

National Yang Ming Chiao Tung University

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About

Charles C. Chang is a robotics researcher whose work has centered on mobile robot navigation, sensor integration, and autonomous systems operating in complex environments. His most significant contribution lies in developing methods for ultrasonic sensor data integration, exploring how range data from cost-effective ultrasonic sensors can be synthesized to construct reliable representations of unknown or uncertain environments — a fundamental challenge in autonomous robotics. His 1996 paper on ultrasonic sensor data integration and environment perception stands as his most influential work, accumulating 20 citations and addressing the practical limitations inherent to standard ultrasonic sensing systems. Beyond perception, Chang has also made contributions to navigation architecture, proposing a virtual-force framework in which distinct navigation resources are modeled as exerting directional forces on a robot, enabling intelligent movement through dynamic, real-world environments. His 1999 study demonstrated this integration approach through both design and experimental validation, further grounding his theoretical ideas in practical application. While his citation footprint is modest, Chang's work reflects careful, applied research during a formative period in mobile robotics, offering foundational insights into sensor fusion and autonomous navigation that remain relevant to the field.