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18 October 2001 Probability of detection of mines and minelike targets in deep water using generalized detector with digital threshold device
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Abstract
This article is devoted to a study of the power signal-to- noise ratio at the output of the generalized detector with the digital threshold device during radar scanning with the purpose of detecting the mines and minelike targets in deep water. The miens and minelike targets in deep water are considered as the targets with fluctuating parameters. Theoretical and experimental investigations of the generalized detector with the digital threshold device used in mine and minelike target detection system allows us to make the statement that the fluctuating parameters of the mines and minelike targets do not lead to power signal-to- noise ratio loses at the output of the generalized detector with the digital threshold device, if the number of target return signals within the limits of the beamwidth during radar scanning is very high. Whenthe number of the target return signals within the limits of the beamwidth during radar scanning is varied from 10 to 100, the power signal- to-noise ratio losses at the output of the generalized detector with the digital threshold device are approximately equal to 0.5 dB in comparison with the case of nonfluctuating parameters of the target return signals. These power signal-to-noise ratio loses at the output of the generalized detector with the digital threshold device are caused by fluctuations of parameters of the target return signals from target return signal to target return signal during radar scanning. The optimal value of the digital threshold of the generalized detector depends on the number of target return signals within the limits of the beam width during radar scanning. If the fluctuations of the parameters of the target return signals form target return signal to target return signal during radar scanning exist, the optimal value of the digital threshold is less than that in the case of nonfluctuating parameters of the target return signals. The use of the generalized detector with the digital threshold device in the mine and minelike target detection system allows us to obtain a larger number of better detection performances of the mines and minelike targets in deep water in comparison with modern optimal signal processing algorithms.
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Vyacheslav P. Tuzlukov "Probability of detection of mines and minelike targets in deep water using generalized detector with digital threshold device", Proc. SPIE 4394, Detection and Remediation Technologies for Mines and Minelike Targets VI, (18 October 2001); https://doi.org/10.1117/12.445457
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