Simultaneous ranging and velocimetry with multi-tone continuous wave lidar

Optics Express
Mustafa Mert BayerOzdal Boyraz

Abstract

In this paper, we demonstrate analytical modeling and experimental verification of simultaneous ranging and velocimetry measurements in multi-tone continuous wave lidars. To assess the ranging performance of the proposed lidar, a comparative experiment of the multi-tone continuous wave and time-of-flight techniques is performed. The average deviation in ranging is ∼0.75cm with >90% fitting accuracy, which corresponds to the uncertainty of the time-of-flight measurements due to the detector bandwidth. Simultaneous ranging and velocimetry are performed on a moving target. The velocimetry accuracy of the multi-tone continuous wave lidar is dictated by the frequency resolution of the Doppler shift, which is measured as ± 0.8cm/s. The results indicate that multi-tone continuous wave lidars can be improved to perform remote sensing for oceanography and atmospheric sciences and for autonomous vehicles without using any amplitude, frequency or phase sweeping.

References

Jun 3, 2010·The Review of Scientific Instruments·D H Dolan
Oct 14, 2017·Optics Letters·Christopher V PoultonMichael R Watts

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Citations

May 15, 2021·Optics Express·Mustafa Mert Bayer, Ozdal Boyraz

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