16 September 2011 Noise-induced outpulsing technique for energy efficiency improvement of laser radar systems
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Abstract
There are stringent false alarm probability demands on laser radar systems systems, although their operation is often accompanied by a complex target environment, when the signal-to-noise ratio is low. New signal processing technique for laser radar systems is suggested. The technique provides detection of a backscattered signal from a target during an interval between a receiver noise bursts A pulse shoot is matched with a trailing edge of a noise burst, and the signal presence decision is made according to leading edge of the next burst. There is a contradiction between the impulse frequency and false alarm probability demands, that is why double-threshold processing is offered. The lower level induces outpulsing while the higher one determines target detection performance. Since duration of such sophisticated time intervals is random, statistic analysis was made via numerical model. The technique is aimed at providing low false alarm probability and energy efficiency of the system at the same time.
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Maria G. Serikova, Maria G. Serikova, Evgeny G. Lebedko, Evgeny G. Lebedko, } "Noise-induced outpulsing technique for energy efficiency improvement of laser radar systems", Proc. SPIE 8137, Signal and Data Processing of Small Targets 2011, 813718 (16 September 2011); doi: 10.1117/12.891807; https://doi.org/10.1117/12.891807
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