A multi-chirped lidar system for simultaneous detection of distance, velocity and direction

Lu Li; Yamei Zhang; Shilong Pan

doi:10.1117/12.2620688

26 July 2022 A multi-chirped lidar system for simultaneous detection of distance, velocity and direction

Lu Li, Yamei Zhang, Shilong Pan

Proceedings Volume 12278, 2021 International Conference on Optical Instruments and Technology: Optical Communication and Optical Signal Processing; 122780U (2022) https://doi.org/10.1117/12.2620688
Event: 2021 International Conference on Optical Instruments and Technology, 2022, Online Only

Abstract

A lidar system for simultaneous detection of distance, velocity and direction of a moving target is proposed and experimentally demonstrated based on an optical multi-chirped LFM signal generator. The optical multi-chirped linearly frequency-modulated (LFM) signal generator is realized by an optical frequency shifting loop (OFSL) that is driven by an electrical LFM signal. After the OFSL, a sequence of optical LFM signals with incremental chirps are generated. The signal is then emitted into the space and captured again after being reflected by a target. A lidar system is thus realized. An experiment is carried out. A sequence of LFM signals with chirps incremented from 0.389 to 2.713 GHz/s are generated. A distance of 19.1 m and velocities of -2.203 m/s and 4.170 m/s are measured based on a lidar system built based on the LFM signal.

Citation Download Citation

Lu Li, Yamei Zhang, and Shilong Pan "A multi-chirped lidar system for simultaneous detection of distance, velocity and direction", Proc. SPIE 12278, 2021 International Conference on Optical Instruments and Technology: Optical Communication and Optical Signal Processing, 122780U (26 July 2022); https://doi.org/10.1117/12.2620688

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
7 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

LIDAR

Signal generators

Optical switching

Modulation

Target detection

Rectangular pulse

Optical amplifiers

Show All Keywords

Keywords/Phrases

Search In:

Publication Years