Results 71 to 80 of about 225,239 (334)
Benthic habitat mapping in the Olympic Coast National Marine Sanctuary: Classification of side scan sonar data from survey HMPR-108-2002-01: Version I [PDF]
, 2006 In September 2002, side scan sonar was used to image a portion of the sea floor in the northern OCNMS and was mosaiced at 1-meter pixel resolution using 100 kHz data collected at 300-meter range scale.
Cochrane, G. R., Intelmann, Steven S.
core
Image Recognition Technology in Texture Identification of Marine Sediment Sonar Image [PDF]
, 2021 Chao Sun, Li Wang, Nan Wang, Shaohua Jin
openalex +1 more source
A tunable microwave absorption metamaterial inspired by moths evading bat detection
InfoMat, EarlyView.Electromagnetic radiation in the current environment has become complex and uncontrollable due to the advancement of wireless technology. Inspired by the moth surface cilia to bend and evade bat sonar detection, our work introduces a metamaterial incorporating broadband and tunable microwave absorption properties combined with deep learning algorithms.
Yijie Liu +13 more
wiley +1 more source
Mobile Robot Range Sensing through Visual Looming [PDF]
, 1998 This article describes and evaluates visual looming as a monocular range sensing method for mobile robots. The looming algorithm is based on the relationship between the displacement of a camera relative to an object, and the resulting change in the size
Gaudiano, Paolo, Sahin, Erol
core +3 more sources
Limnology and Oceanography: Methods, EarlyView.Abstract Marine gas bubble release is a worldwide phenomenon that impacts the local marine ecosystem and contributes to carbon fluxes with respect to global warming. It is still challenging to assess gas flow for large seep areas (tens of km2), but recent advances in calibrating and processing multibeam echosounder (MBES) data make this problem ...
P. Urban +2 more
wiley +1 more source
Remote SensingThe multimode underwater acoustic communication network is a novel form of underwater acoustic communication that adjusts its communication mode to enhance overall performance.
Chao Wang +3 more
doaj +1 more source
Miniature sonar fish tag [PDF]
, 1975 Self-powered sonar device may be implanted in body of fish. It transmits signal that can be detected with portable tracking gear or by automatic detection-and-tracking system. Operating life of over 4000 hours may be expected.
Ferguson, R. L., Lovelady, R. W.
core +1 more source
Limnology and Oceanography: Methods, EarlyView.Abstract Acoustic cameras, or imaging sonars, are often used to monitor marine energy sites in regions where the water is too dark or turbid for optical sensing. To do so more effectively, scientists are investigating automated detection methodologies to use on these data.
Theodore Nowak +2 more
wiley +1 more source
Research on the use of aerial sonar under deep sea conditions [PDF]
Zhihui kongzhi yu fangzhenIn this paper, the use of airborne sonar under deep sea conditions is studied. The sonar detection distance model is established by using the sonar equation.
DONG Caiping, ZHENG Xiaoqing, CUI Shuangyue, ZHANG Jinhua
doaj +1 more source
Automatic Target Recognition for Mine Countermeasure Missions Using Forward-Looking Sonar Data
IEEE Journal of Oceanic Engineering, 2021 The detection of objects on the seafloor is a complex task. The domain of the detection and classification of naval mines is additionally complicated by the high risk nature of the task.
N. Palomeras +4 more
semanticscholar +1 more source