Results 151 to 160 of about 17,635,438 (201)

A Novel Multi-Slope Chirp Modulation and Demodulation with Instantaneous Chirp Rate Estimation. [PDF]

Sensors (Basel)
Magkeethum A, Saechia S, Wardkein P.
europepmc   +1 more source

Acoustic and Ultrasonic Sensing Technology in Non-Destructive Testing. [PDF]

Sensors (Basel)
Castiñeira-Ibáñez S, Tarrazó-Serrano D, Rubio C.   +2 more
europepmc   +1 more source

Autonomous water sampling and quality monitoring in remote locations: A novel approach using a remote-controlled boat. [PDF]

HardwareX
Shukla A, Ross R, Bhattacharya B, Stumpf A.   +3 more
europepmc   +1 more source

Initial assessment of all-season Arctic sea ice thickness from ICESat-2. [PDF]

J Glaciol
Petty A, Cabaj A, Landy JC.
europepmc   +1 more source

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A passive sonar system based on an autonomous underwater vehicle

IEEE Journal of Oceanic Engineering, 2001
Autonomous underwater vehicles (AUVs) are typically used to "actively" probe the ocean, using sensors that are mounted on a vehicle that moves through the water column. A more challenging task is to use an AUV to position a bottom-mounted stationary platform, such as a passive sonar that requires a large aperture.
S.A.L. Glegg, M.P. Olivieri, R.K. Coulson, S.M. Smith   +3 more
openaire   +3 more sources

Passive sonar fusion for submarine C/sup 2/ systems

IEEE Aerospace and Electronic Systems Magazine, 2000
The most important sensors for gathering target information onboard a submarine are passive sonars. Problems concerning fusion of these passive sonars are discussed. Three typical passive sonars-passive noise sonar, passive ranging sonar and acoustic pulse surveillance sonar-constitute a passive sonar system for data fusion.
P. Shar, X. Rong Li
openaire   +3 more sources

Multi-frame Track-before-detect Algorithm for Passive Sonar System

2019 International Conference on Control, Automation and Information Sciences (ICCAIS), 2019
It has been widely verified superiority of multi-frame track-before-detect (MF - TBD) for weak-target detection and tracking. In this paper we apply MF - TBD approach to solve weak unknown and time-varying number of targets detection and tracking problem for passive sonar system with excellent concealment. MF - TBD signal processing method is exclusive
Qiyun Peng, Wujun Li, Lingjiang Kong
openaire   +3 more sources

Efficient Decimation Filter Design for Lofargram Analysis in Passive Sonar Systems

IEEE Transactions on Instrumentation and Measurement, 2006
A new class of low-sensitivity decimation filters based on the polyphase decomposition of infinite impulse response (IIR) transfer functions is proposed. The design approach makes use of optimized positioning of poles and zeros so that transfer functions having unequal numerator and denominator orders are obtained.
Marleusa Correa Gonçalves, Antonio Petraglia   +1 more
openaire   +4 more sources

Gray relativity analysis used to track association in passive sonar system

2017 4th International Conference on Systems and Informatics (ICSAI), 2017
Data association of multisensor multitarget is a very difficult problem in passive system. For the “combination explosion” problem of static data association, many researchers have presented many solutions such as the least distance method and the maximum likelihood method.
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An Improved Tracking Method for Distributed Passive Sonar System

2022 7th International Conference on Signal and Image Processing (ICSIP), 2022
Pengfei Shao, Qing Li, Bin Zhou
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