This paper derives system performance for a chaotically modulated laser rangefinder operating in turbid water, both as a function of rangefinder parameters and as a function of water and target characteristics. An ocean impulse response simulator is used to calculate signal-to-noise-ratios and target detection performance at a variety of water turbidities and target ranges. The use of a digital filter chain is demonstrated, and its effect on system performance is considered. The use of an optical backscatter-removal filter is proposed, and its potential effect on system performance is considered.
Luke Rumbaugh, Daniel Alles, and William Jemison, "Underwater object detection performance of a chaotically modulated laser rangefinder," Proc. SPIE 10631, Ocean Sensing and Monitoring X, 106310Y (Presented at SPIE Defense + Security: April 18, 2018; Published: 25 May 2018); https://doi.org/10.1117/12.2314602.
Conference Presentations are recordings of oral presentations given at SPIE conferences and published as part of the proceedings. They include the speaker's narration with video of the slides and animations. Most include full-text papers. Interactive, searchable transcripts and closed captioning are now available for most presentations.
Search our growing collection of more than 18,000 conference presentations, including many plenaries and keynotes.