Zobrazeno 1 - 10
of 713
pro vyhledávání: '"Active sonar"'
Publikováno v:
水下无人系统学报, Vol 32, Iss 4, Pp 713-717 (2024)
The information synchronization problem is one of the difficulties in the application of multi-base active sonar systems. In existing research and application, it is usually assumed that the receiving station knows the pulse transmission time of the
Externí odkaz:
https://doaj.org/article/6c3fe30f4d3b46b5b9bab329917161b8
Publikováno v:
水下无人系统学报, Vol 32, Iss 2, Pp 354-361 (2024)
The target motion element is important information in anti-submarine warfare, and its calculation results have a great influence on the hitting probability of the target, thus affecting combat decision-making. At present, active sonar is the main sou
Externí odkaz:
https://doaj.org/article/238ca079fa4045248e2b5d9eb37e2fae
Publikováno v:
IEEE Access, Vol 12, Pp 79787-79801 (2024)
We propose an active sonar target classifier using attention-based complementary learning (ABCL) to mitigate poor generalization with scarce active sonar data. ABCL utilizes the information of different features (spectrograms of short-time Fourier tr
Externí odkaz:
https://doaj.org/article/4504e62c2b944778965c11b9707e9350
Autor:
Kai WANG, Junsheng JIAO
Publikováno v:
水下无人系统学报, Vol 31, Iss 6, Pp 896-902 (2023)
To meet the requirements of autonomous detection of underwater moving targets in a strong reverberation background, a track initiation algorithm based on multiple accumulations of active sonar images was proposed to solve the problem of large amounts
Externí odkaz:
https://doaj.org/article/6ee95ac4fe5b44b2963a51f682abdb3e
Publikováno v:
Remote Sensing, Vol 16, Iss 16, p 2949 (2024)
Reverberation is the main background interference in active sonar and seriously interferes with the extraction of the target echo. Active sonar systems can use short-pulse continuous wave (CW) signals to reduce the reverberation intensity. However, a
Externí odkaz:
https://doaj.org/article/92eb0272b97748158be6cc4005c86cea
Autor:
Chao Liu, Shiliang Fang
Publikováno v:
Applied Sciences, Vol 14, Iss 11, p 4865 (2024)
Active sonar can usually only directly measure the distance and bearing information of underwater targets, and cannot directly obtain target velocity, acceleration and other information. Therefore, the amount of information is relatively small, makin
Externí odkaz:
https://doaj.org/article/323332aa99ed4f86827a8914f6120727
Publikováno v:
Frontiers in Marine Science, Vol 10 (2023)
Reverberation is the primary background interference of active sonar systems in shallow water environments, affecting target position detection accuracy. Reverberation suppression is a signal processing technique used to improve the clarity and accur
Externí odkaz:
https://doaj.org/article/eae265b8202d4742a483af87f548b4f4
Publikováno v:
IEEE Access, Vol 11, Pp 143081-143091 (2023)
For decades, the soft-kill strategy which detects high-speed underwater targets with passive sonar and attract the targets using decoys has been used. However, recently, the paradigm to respond to the high-speed underwater targets is shifting to a ha
Externí odkaz:
https://doaj.org/article/c21b2fc268fa4b93960b6c6799d92476
Publikováno v:
Remote Sensing, Vol 16, Iss 2, p 323 (2024)
Joint detection and tracking of weak underwater targets are challenging problems whose complexity is intensified when the target is disturbed by reverberation. In the low signal-to-reverberation ratio (SRR) environment, the traditional detection and
Externí odkaz:
https://doaj.org/article/322e30c098044c3fa909363a8ed4597e
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