Modeling and comparative study of various detection techniques for FMCW LIDAR using optisystem

Ahmed H. Elghandour; Chen D. Ren

doi:10.1117/12.2034878

19 September 2013 Modeling and comparative study of various detection techniques for FMCW LIDAR using optisystem

Ahmed H. Elghandour, Chen D. Ren

Proceedings Volume 8905, International Symposium on Photoelectronic Detection and Imaging 2013: Laser Sensing and Imaging and Applications; 890529 (2013) https://doi.org/10.1117/12.2034878
Event: ISPDI 2013 - Fifth International Symposium on Photoelectronic Detection and Imaging, 2013, Beijing, China

Abstract

In this paper we investigated the different detection techniques especially direct detection, coherent heterodyne detection and coherent homodyne detection on FMCW LIDAR system using Optisystem package. A model for target, propagation channel and various detection techniques were developed using Optisystem package and then a comparative study among various detection techniques for FMCW LIDAR systems is done analytically and simulated using the developed model. Performance of direct detection, heterodyne detection and homodyne detection for FMCW LIDAR system was calculated and simulated using Optisystem package. The output simulated performance was checked using simulated results of MATLAB simulator. The results shows that direct detection is sensitive to the intensity of the received electromagnetic signal and has low complexity system advantage over the others detection architectures at the expense of the thermal noise is the dominant noise source and the sensitivity is relatively poor. In addition to much higher detection sensitivity can be achieved using coherent optical mixing which is performed by heterodyne and homodyne detection.

Citation Download Citation

Ahmed H. Elghandour and Chen D. Ren "Modeling and comparative study of various detection techniques for FMCW LIDAR using optisystem", Proc. SPIE 8905, International Symposium on Photoelectronic Detection and Imaging 2013: Laser Sensing and Imaging and Applications, 890529 (19 September 2013); https://doi.org/10.1117/12.2034878

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