TY - GEN
T1 - Research on Ultrasonic-based Long-distance and Sub-millimeter Real-time Ranging System
AU - Wang, Zhisheng
AU - Cui, Jun
AU - Liu, Liang
AU - Cui, Junning
N1 - Publisher Copyright:
© 2022 SPIE.
PY - 2022
Y1 - 2022
N2 - Towards solving the problem that ultrasonic ranging studied in the past was difficult to reach sub-millimeter accuracy in long-distance ranging. In this paper, after analyzing principles of ranging, a system based on the cross-correlation algorithm and an ultrasonic synchronous transceiver platform had a 192 kHz high sampling rate was designed. First, an ultrasonic transceiver platform was designed as a USB audio system with a sound card as the core. Second, a reverse design idea was introduced into the FPGA software to design the accurate clock system, to achieve 192 kHz high sampling rate and transceiver synchronization. Third, to improve the accuracy and stability of ranging, a valid method was proposed to eliminate the jitter of real-time cross-correlation peaks based on this platform. Finally, we conduct extensive experiments, the results show that the range median error is only 0.95 mm in the range of 4.2 m.
AB - Towards solving the problem that ultrasonic ranging studied in the past was difficult to reach sub-millimeter accuracy in long-distance ranging. In this paper, after analyzing principles of ranging, a system based on the cross-correlation algorithm and an ultrasonic synchronous transceiver platform had a 192 kHz high sampling rate was designed. First, an ultrasonic transceiver platform was designed as a USB audio system with a sound card as the core. Second, a reverse design idea was introduced into the FPGA software to design the accurate clock system, to achieve 192 kHz high sampling rate and transceiver synchronization. Third, to improve the accuracy and stability of ranging, a valid method was proposed to eliminate the jitter of real-time cross-correlation peaks based on this platform. Finally, we conduct extensive experiments, the results show that the range median error is only 0.95 mm in the range of 4.2 m.
KW - USB ultrasonic transceiver platform
KW - Ultrasonic long-distance ranging
KW - cross-correlation method
KW - eliminating peaks jitter
KW - high sampling rate
KW - sub-millimeter
UR - https://www.scopus.com/pages/publications/85137046401
U2 - 10.1117/12.2641532
DO - 10.1117/12.2641532
M3 - 会议稿件
AN - SCOPUS:85137046401
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Second International Conference on Digital Signal and Computer Communications, DSCC 2022
A2 - Saxena, Sandeep
PB - SPIE
T2 - 2nd International Conference on Digital Signal and Computer Communications, DSCC 2022
Y2 - 8 April 2022 through 10 April 2022
ER -