Mitigation of the impact of Doppler shift on ranging accuracy

Chaoyang Li; Jianfeng Sun; Zhiyong Lu; Yu Zhou; Longkun Zhang; Weijie Ren; Yuxin Jiang; Lingling Xu; Hanrui Pan; Weibiao Chen; Hui He

doi:10.1117/12.3007376

24 November 2023 Mitigation of the impact of Doppler shift on ranging accuracy

Chaoyang Li, Jianfeng Sun, Zhiyong Lu, Yu Zhou, Longkun Zhang, Weijie Ren, Yuxin Jiang, Lingling Xu, Hanrui Pan, Weibiao Chen, Hui He

Author Affiliations +

Proceedings Volume 12935, Fourteenth International Conference on Information Optics and Photonics (CIOP 2023); 1293520 (2023) https://doi.org/10.1117/12.3007376
Event: Fourteenth International Conference on Information Optics and Photonics (CIOP 2023), 2023, Xi’an, China

Abstract

Time-frequency synchronization is a basic element in some fields such as deep space exploration and satellite navigation. Its accuracy and precision are closely related to the measurement results of these systems. In high signal-to-noise ratio situation, the accuracy of time-frequency synchronization is affected by the Doppler frequency shift. In this study, we propose an interpolation model that can mitigate the impact of the Doppler frequency shift, which is constructed from the prior information of the system and related to phase difference of the pseudo-random code. A coherent heterodyne ranging system is built, which is phase-modulated by pseudo-random binary code. And interpolation model is experimentally verified. The experimental results show that the ranging deviation is not more than 0.55 mm for static target. For the moving target, the ranging deviation does not exceed 0.40 mm, and the deviation of the velocity measurement is within 0.45 mm/s.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Chaoyang Li, Jianfeng Sun, Zhiyong Lu, Yu Zhou, Longkun Zhang, Weijie Ren, Yuxin Jiang, Lingling Xu, Hanrui Pan, Weibiao Chen, and Hui He "Mitigation of the impact of Doppler shift on ranging accuracy", Proc. SPIE 12935, Fourteenth International Conference on Information Optics and Photonics (CIOP 2023), 1293520 (24 November 2023); https://doi.org/10.1117/12.3007376

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