Combined radar and cross polarizational radiometer system for detection and identification of some anomalous formations originated on sea surface due to changes of long and short waves spectrum components

Abstract Intensive development of infrastructure for fast processing of outsized amount of space-borne data enables now to use the satellite data for operational controlling the state of its environment. In our presentation we show some examples of analysis of processes in marine environment which are possible due to satellite data and algorithms of its processing developed in SatBaltic Project. It concerns supporting of modelling of solar energy inflow to the sea with space-borne input data, identification and analysis of sea ice cover, supporting of oil spill detection, and identification of phenomena which modify spatial distribution of the sea surface temperature.

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A Novel Energy Efficient Joint Dynamic Emissive Location-Based Routing Scheme for SOFAR Channel Underwater Sensor Networks

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.284-287.2001 ◽

2013 ◽

Vol 284-287 ◽

pp. 2001-2004 ◽

Cited By ~ 2

Author(s):

Chia Sheng Tsai ◽

Chich Fu Yang

Keyword(s):

Global Positioning System ◽

Routing Protocol ◽

Routing Protocols ◽

Energy Efficient ◽

Sea Surface ◽

Underwater Sensor Networks ◽

Detection And Identification ◽

Global Positioning ◽

Reduced Costs ◽

Better Than

The Underwater Sensor Network (UWSN) could be recorded by hydrophones suspended in the channel as earthquake monitors by seismic events on or below the seafloor generated energy. In this paper, we present a novel position of sensor devices and routing protocol towards short for Sound Fixing and Ranging channel (SOFAR) for Sound Fixing and Ranging channel technologies, which could save transmission power. The sound speed also increases towards the warmer sea surface with temperature. Thus we use the oceanography to find more efficient ways of utilizing routing protocol and in to obtain more effective detection and identification capabilities for underwater sources. We present an adaptive location-based routing protocol which can overcome the location based UWSN without Global Positioning System (GPS) position. It reduced costs of deployment in long range propagation. The performances are measured according to the energy consumption per bit in which the result of simulator is better than other routing protocols such as FBR.

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An Infrared DoLP Model Considering the Radiation Coupling Effect

Photonics ◽

10.3390/photonics8120546 ◽

2021 ◽

Vol 8 (12) ◽

pp. 546

Author(s):

Dezhi Su ◽

Liang Liu ◽

Lingshun Liu ◽

Ruilong Ming ◽

Shiyong Wu ◽

...

Keyword(s):

Coupling Effect ◽

Sea Surface ◽

Polarization Degree ◽

Observation Angle ◽

Minimum Value ◽

Detection And Identification ◽

Increasing Trend ◽

Simulation Results ◽

Aluminum Plates ◽

Polarization Detection

The polarization degree of objects in the marine background are affected by infrared radiation from sea surface. Taking into account the radiation coupling effect (RCE), a degree of linear polarization (DoLP) model is deduced. The DoLP of painted aluminum plates at different observation angles are simulated. The simulation results show the trend of the DoLP of the object decreases first and then increases as the observation angle θO, with the minimum value at θO=53∘. Nevertheless, we get a monotonically increasing trend and the minimum value is at θO=0∘ without considering RCE. The experimental results accord closely with those of the simulation with RCE. This conclusion is useful for the polarization detection and identification of infrared objects in the marine background.

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Ship detection in Madura Strait and Lamong Gulf using Sentinel-1 SAR Data

Digital Press Physical Sciences and Engineering ◽

10.29037/digitalpress.11224 ◽

2018 ◽

Vol 1 ◽

pp. 00002

Author(s):

Filsa Bioresita ◽

Cherie Bhekti Pribadi ◽

Hana Sugiastu Firdaus

Keyword(s):

Rapid Detection ◽

Extraction Method ◽

Sea Surface ◽

Synthetic Aperture ◽

Ship Detection ◽

Remote Sensing Technology ◽

Maritime Surveillance ◽

Sensing Technology ◽

Detection And Identification ◽

Sar Imaging

<p class="Abstract">During the recent years, maritime surveillance has been receiving a growing interest. Ship detection and identification are parts of maritime surveillance in order to dealing with illegal fishery, maritime traffic, sea border activity, or oil spill detection and monitoring. Nowadays, Synthetic Aperture Radar (SAR) as one of active remote sensing technology provide signals to penetrate cloud, can be advantage to be used in tropical region with the intention to monitor sea objects on the sea surface from the space. The availability of Sentinel-1 as SAR imaging mission, providing continuous all-weather, day-and-night imagery, makes it ideal for precise cueing and location of ship activities at sea. Utilization of CFAR (Constant False Alarm Rate) algorithm provided by SNAP (Sentinel Application Platform) software from ESA show rapid detection of ship in the study areas (Madura Strait and Lamong Gulf). Compared with manual ship extraction method, it gives sufficient results.<o:p></o:p></p>

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Identification of hepatitis a virus in cell cultures by solid phase immune electron microscopy

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100142815 ◽

1986 ◽

Vol 44 ◽

pp. 238-239

Author(s):

C.D. Humphrey ◽

T.L. Cromeans ◽

E.H. Cook ◽

D.W. Bradley

Keyword(s):

Electron Microscopy ◽

Liquid Phase ◽

Cell Cultures ◽

Rapid Detection ◽

Hepatitis A ◽

Hepatitis A Virus ◽

Solid Phase ◽

Immune Electron Microscopy ◽

Detection And Identification

There is a variety of methods available for the rapid detection and identification of viruses by electron microscopy as described in several reviews. The predominant techniques are classified as direct electron microscopy (DEM), immune electron microscopy (IEM), liquid phase immune electron microscopy (LPIEM) and solid phase immune electron microscopy (SPIEM). Each technique has inherent strengths and weaknesses. However, in recent years, the most progress for identifying viruses has been realized by the utilization of SPIEM.

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