Continuous-wave light detection and ranging (LiDAR) using image-reject homodyne detection and PRBS modulation

Katie A. P. Ward; James T. Spollard; Lyle E. Roberts; David C. McClelland; Daniel A. Shaddock

doi:10.1117/12.2539990

30 December 2019 Continuous-wave light detection and ranging (LiDAR) using image-reject homodyne detection and PRBS modulation

Katie A. P. Ward, James T. Spollard, Lyle E. Roberts, David C. McClelland, Daniel A. Shaddock

Author Affiliations +

Proceedings Volume 11200, AOS Australian Conference on Optical Fibre Technology (ACOFT) and Australian Conference on Optics, Lasers, and Spectroscopy (ACOLS) 2019; 112001Q (2019) https://doi.org/10.1117/12.2539990
Event: ANZCOP, 2019, Melbourne, Australia

Abstract

We present a continuous wave Light Detection And Ranging (LiDAR) sensor that instantaneously measures distance and radial velocity with strong immunity to interference (e.g., other LiDAR sensors, glare). By automatically prioritising measured information based on velocity and range, our aim is to reduce the processing time required to execute safety-critical decisions in autonomous applications.

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Katie A. P. Ward, James T. Spollard, Lyle E. Roberts, David C. McClelland, and Daniel A. Shaddock "Continuous-wave light detection and ranging (LiDAR) using image-reject homodyne detection and PRBS modulation", Proc. SPIE 11200, AOS Australian Conference on Optical Fibre Technology (ACOFT) and Australian Conference on Optics, Lasers, and Spectroscopy (ACOLS) 2019, 112001Q (30 December 2019); https://doi.org/10.1117/12.2539990

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KEYWORDS

LIDAR

Doppler effect

Field programmable gate arrays

Distance measurement

Sensors

Homodyne detection

Modulation

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