Results 141 to 150 of about 1,232 (173)

Unconstrained underwater multi-target tracking in passive sonar systems using two-stage PF-based technique

International Journal of Systems Science, 2012
A robust particle filter PF-based multi-target tracking solution for passive sonar systems able to track an unknown time-varying number of multiple targets, while keeping continuous tracks of such targets, is presented in this article. PF is a nonlinear filtering technique that can accommodate arbitrary sensor characteristics, motion dynamics and noise
Jacques Georgy, Aboelmagd Noureldin
openaire   +1 more source

Theory and Implementation of Advanced Signal Processing for Active and Passive Sonar Systems

2000
Several review articles on sonar system technology have provided a detailed description of the mainstream sonar signal processing functions along with the associated implementation considerations. This chapter attempts to extend the scope of these articles by introducing an implementation effort of nonmainstream processing schemes in real-time sonar ...
Stergios Stergiopoulos, Geoffrey Edelson
openaire   +2 more sources

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
openaire   +1 more source

The use of multipath time-delay estimation for source localization with passive broadband sonar systems

The Journal of the Acoustical Society of America, 1989
The employment of multipath time-delay estimation for acoustic source localization with passive autocorrelation and cross-correlation systems is examined. Important differences in multipath time-delay estimation with wideband and narrower band systems are delineated.
Peter Bilazarian, David J. Pistacchio
openaire   +1 more source

Development of a passive sonar system for localization of an underground sound origin

The Journal of the Acoustical Society of America, 1998
The aim of the work described in this paper is to develop a complex underground acoustic system which detects and localizes the origin of an underground hammering sound using an array of hydrophones located about 100 m underground. Three different methods for the sound localization will be presented, a time-delay method, a power-attenuation method and ...
openaire   +1 more source

Sensitivity studies of tapped delay line filters applied to a passive sonar system†

International Journal of Control, 1970
Performance sensitivity of a tapped delay line filter is studied by varying system parameters such as tap coefficients, tap spacings, and the spectra and bandwidth of signal, noise, and directional noises. The optimum filter is designed both with and without the directional noise by using mean-square-error criterion for the case of single and multiple ...
openaire   +1 more source

Implementation of adaptive and synthetic-aperture processing schemes in integrated active-passive sonar systems

Proceedings of the IEEE, 1998
Progress in the implementation of state-of-the-art signal processing schemes in sonar systems is limited mainly by the moderate advance made in sonar computing architectures and the lack of operational evaluation of the advanced processing schemes. Until recently, matrix-based processing techniques, such as adaptive and synthetic-aperture processing ...
openaire   +1 more source

Real-Time Underwater Maritime Object Detection in Side-Scan Sonar Images Based on Transformer-YOLOv5

Remote Sensing, 2021
Yongcan Yu, Jianhu Zhao, Chao Huang
exaly  

Research on Obstacle Detection and Avoidance of Autonomous Underwater Vehicle Based on Forward-Looking Sonar

IEEE Transactions on Neural Networks and Learning Systems, 2023
Xiang Cao, Lu Ren, Changyin Sun
exaly  

Underwater inspection of bridge substructures using sonar and deep convolutional network

Advanced Engineering Informatics, 2022
Gang Wu
exaly