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18 April 2018 Compact lidar system using laser diode, binary continuous wave power modulation, and an avalanche photodiode-based receiver controlled by a digital signal processor
Antoni Ardanuy, Adolfo Comerón
Author Affiliations +
Funded by: European Unions Horizon 2020 research and innovation programme, European Union Horizon 2020 Research and Innovation Programme, Ministerio de Economía y Competitividad, Department of Enterprise and Knowledge, Generalitat de Catalunya, Agencia Estatal de Investigación, Spain
Optical Engineering, Vol. 57, Issue 4, 044104 (April 2018). https://doi.org/10.1117/1.OE.57.4.044104
Abstract
We analyze the practical limits of a lidar system based on the use of a laser diode, random binary continuous wave power modulation, and an avalanche photodiode (APD)-based photereceiver, combined with the control and computing power of the digital signal processors (DSP) currently available. The target is to design a compact portable lidar system made all in semiconductor technology, with a low-power demand and an easy configuration of the system, allowing change in some of its features through software. Unlike many prior works, we emphasize the use of APDs instead of photomultiplier tubes to detect the return signal and the application of the system to measure not only hard targets, but also medium-range aerosols and clouds. We have developed an experimental prototype to evaluate the behavior of the system under different environmental conditions. Experimental results provided by the prototype are presented and discussed.
CC BY: © The Authors. Published by SPIE under a Creative Commons Attribution 4.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.
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Antoni Ardanuy and Adolfo Comerón "Compact lidar system using laser diode, binary continuous wave power modulation, and an avalanche photodiode-based receiver controlled by a digital signal processor," Optical Engineering 57(4), 044104 (18 April 2018). https://doi.org/10.1117/1.OE.57.4.044104
Received: 4 November 2017; Accepted: 28 March 2018; Published: 18 April 2018
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Cited by 4 scholarly publications.
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KEYWORDS
LIDAR
Digital signal processing
Signal processing
Signal to noise ratio
Clouds
Receivers
Continuous wave operation
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