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Updated: Jan 31, 2026
Control of Eating Behavior Using a Novel Feedback System
Published on: May 8, 2018
Note: Temperature compensation of time-of-flight light detection and ranging (LiDAR) using feedback control of
Bumsik Won1, Junhwan Jang1, Sungui Hwang1
1Department of Mechanical Engineering, Gwangju Institute of Science and Technology, 123, Cheomdangwagi-ro, Buk-gu, Gwangju, South Korea.
Abstract:
Time-of-flight-based two-dimensional and three-dimensional light detection and ranging (LiDAR) applications have recently been implemented in several industries because of their high-precision measuring capabilities over long distances in outdoor environments. Avalanche photodetectors (APDs) are commonly used for LiDARs because of their high internal gain that significantly amplifies a measured signal. However, the magnitude of the measured signal changes significantly with temperature variations, owing to the temperature dependent characteristics of the APD. In this study, a temperature compensation method, in which a bias voltage of the APD is adjusted for temperature changes using signal-to-noise ratio feedback control, is proposed to solve the problem. This method has the advantage of a simple hardware configuration, without using a conventionally considered cooler.
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