Zobrazeno 1 - 10
of 48
pro vyhledávání: '"Tongsheng Shen"'
Publikováno v:
IEEE Access, Vol 12, Pp 81483-81494 (2024)
The presence of natural ambient noise interferes with the system for locating and identifying underwater targets. This paper suggests that a Dual-Path Transformation Network (DPTN) reduces ambient noise in underwater acoustic signals. First, the inpu
Externí odkaz:
https://doaj.org/article/febdc4b3ecd446c7aecca1cfc8bb5adb
Publikováno v:
Sensors, Vol 24, Iss 21, p 6989 (2024)
To solve the poor performance or even failure of the cross-spectrum (CS) method in hydroacoustic weak-target passive velocimetry, a sparse Bayesian learning cross-spectrum method (SBL-CS), combining phase compensation with sparse Bayesian learning (S
Externí odkaz:
https://doaj.org/article/b6ccc90e274c45ed859fb748b0be2089
Publikováno v:
Journal of Marine Science and Engineering, Vol 12, Iss 10, p 1877 (2024)
Classifying modulated signals for non-cooperative underwater acoustic communication is challenging due to signal distortion caused by fading and multipath effects in the underwater acoustic channel. Our proposed method utilizes channel estimation par
Externí odkaz:
https://doaj.org/article/181dbda5c98a4c2a8ebbe17bc22bfbed
Publikováno v:
Journal of Marine Science and Engineering, Vol 11, Iss 9, p 1739 (2023)
The geomagnetic field constitutes a massive fingerprint database, and its unique structure provides potential position correction information. In recent years, particle filter technology has received more attention in the context of robot navigation.
Externí odkaz:
https://doaj.org/article/3f42ccbb58d94c7886371fdeca146fb5
Publikováno v:
Materials, Vol 16, Iss 15, p 5229 (2023)
Metamaterials are usually designed using biomimetic technology based on natural biological characteristics or topology optimization based on prior knowledge. Although satisfactory results can be achieved to a certain extent, there are still many perf
Externí odkaz:
https://doaj.org/article/7109bde1fcda40b0acf1b98e0ebde02b
Publikováno v:
Chinese Journal of Mechanical Engineering, Vol 34, Iss 1, Pp 1-17 (2021)
Abstract Hydraulic pumps are a positive displacement pump whose working principle causes inherent output flow pulsation. Flow pulsation produces pressure pulsation when encountering liquid resistance. Pressure pulsation spreads in the pipeline and ca
Externí odkaz:
https://doaj.org/article/9c24198e83e44ca18493bcacdfbedb85
Publikováno v:
Applied Sciences, Vol 12, Iss 21, p 10804 (2022)
The underwater acoustic target signal is affected by factors such as the underwater environment and the ship’s working conditions, causing the generalization of the recognition model is essential. This study is devoted to improving the generalizati
Externí odkaz:
https://doaj.org/article/eb29efefaf334d90bad5a1053c660405
Publikováno v:
Complexity, Vol 2020 (2020)
In order to obtain the measurement parameters of the sea bottom geomorphology or underwater objects, the first step in side-scan sonar (SSS) image processing is bottom detection. Due to the complexity of the marine environment, the acoustic signals r
Externí odkaz:
https://doaj.org/article/594b30c459284c74850f9037103bf36e
Publikováno v:
Journal of Marine Science and Engineering, Vol 10, Iss 2, p 163 (2022)
Accumulating evidence suggests that migrating animals store navigational “maps” in their brains, decoding location information from geomagnetic information based on their perception of the magnetic field. Inspired by this phenomenon, a novel geom
Externí odkaz:
https://doaj.org/article/94d372082ea24cf6a1e2f7c634499cba
Publikováno v:
Ships & Offshore Structures; Mar2024, Vol. 19 Issue 3, p366-374, 9p