Results 101 to 110 of about 336,461 (224)

Active sonar performance modelling for Doppler-sensitive pulses

, 2021
Accurate sonar performance modelling is essential to predict likely detection ranges that can be obtained by employing active anti-submarine warfare sonars. Reverberation forms an important source of interference for active sonar performance, the effects
Prior, M.K., Colin, M., Hartstra, I.E.
core  

DOA Estimation Based on Circular-Attention Residual Network

Applied Sciences
Direction of arrival (DOA) estimation is a fundamental problem in array signal processing, with extensive applications in radar, communications, sonar, and other fields.
Min Zhang, Hong Jiang, Jia Li, Jianglong Qu   +3 more
doaj   +1 more source

Sublinearly space bounded iterative arrays [PDF]

, 2007
Iterative arrays (IAs) are a, parallel computational model with a sequential processing of the input. They are one-dimensional arrays of interacting identical deterministic finite automata.
B.S. Palano, Mereghetti, Carlo, Palano, Beatrice, A. Malcher, Malcher, Andreas, C. Mereghetti   +5 more
core  

Spatial audio signal processing for passive sonar applications

This thesis consists of five publications that focus on the development and evaluation of techniques designed for passive sonar applications utilising hydrophone arrays.
Bountourakis, Vasileios
core   +1 more source

Principles of Sonar Performance Modeling

, 2010
Sonar performance modelling (SPM) is concerned with the prediction of quantitative measures of sonar performance, such as probability of detection. It is a multidisciplinary subject, requiring knowledge and expertise in the disparate fields of underwater
Ainslie, M.A.
core  

Robust Direction of Arrival Estimation of Wideband LFM Signals using Dechirping Algorithms with a few Snapshots in the Linear Array

مهندسی مخابرات جنوب
Wideband linear frequency modulation (LFM) signals are widely used in systems such as radar, sonar and mobile. DOA estimation algorithms LFM signals rely on a large number of time frames (Snapshot). Therefore, they are not suitable for low power and real-
Abbas Partovi Sangi, Jasem Jamali, Mohammad Hossein Fatehi Dindarlou, Mohammad Mehdi Ghanbarian   +3 more
doaj  

Status and future of research on the behavioural responses of marine mammals to U.S. Navy sonar [PDF]

, 2015
A review of the status and future of research into behavioral responses of marine mammals to naval sonar exposure was undertaken to evaluate the return on investment of current US Navy funded programs, identify the data needs and the contributions of ...
Harris, Catriona M, Thomas, Len
core  

Low frequency continuous active sonar

, 2011
Existing sonar systems are commonly deployed at a low duty cycle, i.e. a short transmit signal is used followed by a long listening time. As a result, the target is only illuminated during a short time resulting in only one detection opportunity per ping.
Vossen, R. van, Spek, E. van der, Beerens, S.P.   +2 more
core  

Sonar Equations for Planets and Moons

, 2015
A set of equations to describe the performance of sonar systems, collectively known as the “sonar equations”, was developed during and after the Second World War.
Ainslie, M.A., Leighton, T.G.
core  

Single-Beam Sonar Motion Deformation Compensation and Localization Method for Underwater Robots in Confined Waters. [PDF]

Sensors (Basel)
Ding T, Xu Z, Liu X.
europepmc   +1 more source