Results 1 to 10 of about 212,791 (331)

Research on observability of two wire-guided torpedoes tracking system [PDF]

open access: yesITM Web of Conferences, 2022
Under special condition, the surface target could be attacked by the submarine with two wire-guided torpedoes with passive acoustic homing mode. When the acoustic homing device detects the target bearing and transmit it back to the submarine through the ...
Xu Zhaopeng, Ye Xuefan, Li Bo, Miao Qi
doaj   +1 more source

Research on the simulation of factors influencing maximum firing distance of acoustic homing torpedo [PDF]

open access: yesITM Web of Conferences, 2022
In the torpedo attack, the appropriate firing distance is the key to ensure the torpedo hit the target, it’s necessary to ensure the firing distance used is within the maximum firing distance. Therefore, under the premise of known firing conditions, it’s
Xu Zhaopeng   +3 more
doaj   +1 more source

An Improved Doppler Centroid Estimator Meeting the Cramér–Rao Bound for Ocean SAR Application

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023
The Doppler information in complement to the intensity of radar backscatter has been verified useful for ocean synthetic aperture radar (SAR) applications.
Pu Cheng   +6 more
doaj   +1 more source

A Survey on Deep-Learning-Based Real-Time SAR Ship Detection

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023
Recently, deep learning has greatly promoted the development of synthetic aperture radar (SAR) ship detection. But the detectors are usually heavy and computation intensive, which hinder the usage on the edge.
Jianwei Li   +5 more
doaj   +1 more source

Spectral line extraction based on ant-colony algorithm

open access: yesEURASIP Journal on Advances in Signal Processing, 2021
A spectral-line-extraction algorithm based on the ant-colony algorithm is proposed to address the difficulty of extracting spectral lines in low signal-to-noise ratio conditions, and the problem that results from the optimal path algorithm falls into ...
Yusheng Cheng   +4 more
doaj   +1 more source

A Comprehensive Survey on SAR ATR in Deep-Learning Era

open access: yesRemote Sensing, 2023
Due to the advantages of Synthetic Aperture Radar (SAR), the study of Automatic Target Recognition (ATR) has become a hot topic. Deep learning, especially in the case of a Convolutional Neural Network (CNN), works in an end-to-end way and has powerful ...
Jianwei Li   +5 more
doaj   +1 more source

An Installation Angle Error Calibration Method in an Ultra-Short Baseline System Based on a Dual Transponder

open access: yesPolish Maritime Research, 2023
The installation error of an acoustic transceiver array is one of the important error sources in an ultra-short baseline (USBL) system. In a USBL system with a positioning accuracy of 0.5%, an installation error angle of 1° will lead to a positioning ...
Liu Baoheng   +5 more
doaj   +1 more source

Prediction of Battery SOH by CNN-BiLSTM Network Fused with Attention Mechanism

open access: yesEnergies, 2022
During the use and management of lead–acid batteries, it is very important to carry out prediction and study of the state of the health (SOH) of the battery.
Shuo Sun   +4 more
doaj   +1 more source

Demand and Method Discussions for Intelligent Decisions of Torpedo Attacking by Unmanned Undersea Vehicle

open access: yes水下无人系统学报, 2023
The autonomous technology of unmanned equipment is currently the most dynamic frontier technology field. Therefore, improving the intelligence of decision-making is an inevitable trend in the development of future unmanned undersea vehicles (UUVs ...
Liang MA   +4 more
doaj   +1 more source

Effect of topography on subglacial discharge and submarine melting during tidewater glacier retreat. [PDF]

open access: yes, 2017
-We explored secular variations in subglacial discharge and submarine melting with an idealized model -Subglacial discharge increases as tidewater glaciers retreat along retrograde beds -Submarine melting depends on subglacial discharge and ...
Amundson   +51 more
core   +1 more source

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