منابع مشابه
Sonar Target Classification with Sonar Fingerprint
To recognize underwater target precisely is always a hot potato to navies due to the complicated watery environment. It’s different from the aerial circumstance. There is much more interfere under the sea. Sonar is the most efficient way to detect underwater world at present time. In this paper, a geneticbased classifier system is designed which recognizes targets by sonar fingerprints. This me...
متن کاملPassive Sonar Performance Modeling
Accurate passive acoustic (ASW) performance modeling requires high-fidelity environmental inputs, accurate acoustic propagation and noise modeling as well as the integration of the statistics of the detection of quiet signals in a dynamic environment. In this paper we present the combination of Parabolic Equation modeling with state of the art statistical signal processing to be able to incorpo...
متن کاملNarrowband Passive Sonar Tracking
Passive sonar sensors are the main source of information for a submerged submarine. Modern sonar systems like ISUS 90 offer a number of acoustic antennas and combined signal processing for broadband and narrowband detection and analysis of target noise. While broadband detection is often used to obtain an overview of the targets surrounding the own ship, narrowband processing enables the detect...
متن کاملTime Domain Sonar Beamforming
This note outlines the techniques routinely used in sonar systems to implement time domain and frequency domain beamforming systems. It takes a very simplistic approach to the problem and should not be considered as definitive in any sense. Consider an array of hydrophones receiving signals from an acoustic source in the far-field (Figure 1a). If the outputs from the 'phones are simply added to...
متن کاملSonar Walking Stick
The ability to aid the visually impaired is a field that has the potential to advance itself with the improvement of technology. Many of these products that assist those in need can cost up to $650, which is an expense that not everybody in need can afford. This means that the technology doesn't get into the hands of all those who need the devices. The sonar walking stick designed in this repor...
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ژورنال
عنوان ژورنال: Clinical Journal of the American Society of Nephrology
سال: 2020
ISSN: 1555-9041,1555-905X
DOI: 10.2215/cjn.08540719