Sudhir Kumar Chaturvedi
• In the past, the main goals of Synthetic Aperture Radar (SAR) systems were the study of the interaction of electromagnetic waves with the earth surface.
• Recently, the development of multi-channel SAR systems has enabled the development of more sophisticated techniques for the surveillance activities.
• SAR is the most efficient instrument, which provides high-resolution data for wide ocean area surveillance under all weather conditions. The intrinsic capability of this instrument is to provide a quick view of the oceanic surface features such as vessels, waves and currents, oil spills, laver facilities and wind fields.
• The ship detection/recognition is achieved in two steps: the first step is to identify the ship in SAR images of a busy traffic, which corresponds to Automatic Identification System (AIS) signals by the “dead-reckoning (DR) position”, and the second step is to estimate the position, size and speed of the ship from SAR images and compare these results with the AIS “true” data.
In the past, the main goals of Synthetic Aperture Radar (SAR) systems were the study of the interaction of electromagnetic waves with the earth surface. Recently, the development of multi-channel SAR systems has enabled the development of more sophisticated techniques for the surveillance activities. SAR is the most efficient instrument, which provides high-resolution data for wide ocean area surveillance under all weather conditions. The intrinsic capability of this instrument is to provide a quick view of the oceanic surface features such as vessels, waves and currents, oil spills, laver facilities and wind fields. The ship detection or recognition is achieved in two steps: the first step is to identify the target in SAR images of a busy traffic, which corresponds to Automatic Identification System (AIS) signals by the “dead-reckoning (DR) position”, and the second step is to estimate the position, size and speed of the ship from SAR images and compare these results with the AIS “true” data. This paper presents the fundamentals of SAR and its integration with the AIS data for the ship target detection.
Continue reading Study of synthetic aperture radar and automatic identification system for ship target detection
Courtesy: Marine Insight
By Raunek | In: Marine Navigation, Marine Safety | Last Updated on March 1, 2019
These days one can effectively track and monitor everything that one wishes to. A vessel tracking system, as the name suggests is a collection of equipments which enable marine and naval vessels to track, identify and monitor a ship’s position, location and any other detail that might be important in maneuvering and stabilizing a ship’s route and course.
Continue reading The Importance of Vessel Tracking System
Authors – Krishnan Saravanan Selva Aswini Raghvendra Kumar Le Hoang Son
Methodology Article First Online: 05 November 2018
Maritime Border Collision is one of the vital concerns in coastal states since the maritime boundaries of any two countries cannot be identified easily during fishing.
Maritime domain awareness and the border line control are the essential requirement which happens via recognition, and observing of boats inside their country boundary.
It is necessary to identify the maritime border and alert the fisherman during the fishing.
Continue reading How to prevent maritime border collision for fisheries – A design of Real-Time Automatic Identification System
Received: 30 October 2018 / Revised: 10 March 2019 / Accepted: 11 March 2019 / Published: 15 March 2019
In order to monitor and manage vessels in channels effectively, identification and tracking are very necessary.
This work developed a maritime unmanned aerial vehicle (Mar-UAV) system equipped with a high-resolution camera and an Automatic Identification System (AIS).
A multi-feature and multi-level matching algorithm using the spatiotemporal characteristics of aerial images and AIS information was proposed to detect and identify field vessels.
Continue reading A Multi-Feature and Multi-Level Matching Algorithm Using Aerial Image and AIS for Vessel Identification
Courtesy: SA News.gov.za
Sunday, February 24, 2019
The first real-time data from South Africa’s ZACube-2 nanosatellite will be unveiled on Tuesday, according to the Department of Science and Technology.
The continent’s most advanced nanosatellite to date, the ZACube-2 was successfully launched into space in December. It is expected to provide cutting edge remote sensing and communication services to South Africa and the region.
Continue reading Minister to unveil first data from ZACube-2
Friday, 15 February 2019
exactEarth a provider of Satellite AIS data services, has announced that the final six payloads for its second-generation constellation, exactView RT, are now in operation. This completes the roll-out of the first global real-time Satellite-AIS service with a total of 58 operational satellite payloads and seven orbital spares.
Continue reading exactEarth deploys final six satellite payloads
Written by defenceWeb – 11th Feb 2019
The Institute for Maritime Technology headquarters in Simons Town.
Armscor’s Institute of Maritime Technology (IMT) has made a significant breakthrough in the field of maritime safety and communications by installing the world’s first VDES base station, which allows significantly faster data transfers to and from ships, improving safety and maritime awareness.
Continue reading Maritime safety breakthrough at IMT
The topmost priority for geographies across the world, has witnessed a steep rise in the demand for AToN management & monitoring system, especially in Asia Pacific. Rising demand for the Automatic Identification System (AIS) in this region, besides the coastal scrutiny systems have further resulted in the proliferated growth of this market, which is anticipated to be valued at the US$ 2,404.3Mn through 2026.
Albany, NY — (SBWIRE) — 01/30/2019 — In order to study the various trends and patterns prevailing in the concerned market, Market Research Reports Search Engine (MRRSE) has included a new report titled “AToN Management and Monitoring System Market” to its wide online database. This research assessment offers a clear insight about the influential factors that are expected to transform the global market in the near future.
Continue reading AToN Management and Monitoring System Market Projected to Touch CAGR 4.0% During 2018-2026
Courtesy: BBC News
By Zoe Kleinman
Technology reporter, BBC News
2 February 2017
Fisherman David Shoshola says the Abalobi app has given him more financial security
Braving the choppy waters of the South Atlantic four days a week, fisherman David Shoshola says a mobile phone app is helping him worry less about the risk of not being able to support his family.
Continue reading How smartphones are proving clickbait for fishermen
Courtesy: Marine Online
Thursday, 31 January 2019
Upcoming articles in this blog will include information about AIS (Automatic Identification System), VDES (VHF Data Exchange System), AIS Transponders / Transceivers, AIS Class A, AIS Class B, AIS Base Stations, AIS AtoN (Aids to Navigation), AIS SART (Search and Rescue Transmitter), Vessel Traffic Service (VTS), Vessel Traffic Management Information System (VTMIS), AIS Satellite, Global Maritime Distress and Safety System (GMDSS), Digital Selective Calling (DSC), Marine VHF Radio, Homeland Security, Exclusive Economic Zone (EEZ), cargo payload, draught, capacity utilisation, maritime big data, bulk shipping, line-up reports, trade flow, commodity, satellite, naval architecture, fishing, sar, security, synthetic aperture radar, visible infrared imaging radiometer suite (viirs), vessel tracking, ship tracking, communication and other related issues.