Wideband dual-frequency lidar-radar for simultaneous velocity and high-resolution range profile measurements

G. Pillet; L. Morvan; D. Dolfi; J.-P. Huignard

doi:10.1117/12.819997

2 May 2009 Wideband dual-frequency lidar-radar for simultaneous velocity and high-resolution range profile measurements

G. Pillet, L. Morvan, D. Dolfi, J.-P. Huignard

Proceedings Volume 7323, Laser Radar Technology and Applications XIV; 73230Z (2009) https://doi.org/10.1117/12.819997
Event: SPIE Defense, Security, and Sensing, 2009, Orlando, Florida, United States

Abstract

We report on a wideband lidar-radar architecture in which range resolution is independent of pulse duration thanks to the use of a widely tunable intensity-modulated laser combined with a radar-like signal processing. We use a dual frequency laser which provides a modulated beam with a modulation frequency tunable over 1 GHz. A stepped-frequency waveform is obtained and 30 cm range resolution is demonstrated. Field experiments have been conducted on mobile targets, which assess the ability of this setup to measure simultaneously the range and the velocity. A velocity resolution of 1.70 m/s is demonstrated.

Citation Download Citation

G. Pillet, L. Morvan, D. Dolfi, and J.-P. Huignard "Wideband dual-frequency lidar-radar for simultaneous velocity and high-resolution range profile measurements", Proc. SPIE 7323, Laser Radar Technology and Applications XIV, 73230Z (2 May 2009); https://doi.org/10.1117/12.819997

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