Carrying out an effective control of fishing activities is essential to guarantee a sustainable exploitation of sea resources. While traditional reconnaissance methods, such as planes and patrol vessels are indispensible, their operation is quite time consuming and costly over the extended regulated areas. On the contrary, satellitebased Synthetic Aperture Radar (SAR) provides a powerful survei...

Multi-Agent System for Predictive Reconfiguration of Shipboard Power Systems. (December 2003) Sanjeev Kumar Srivastava, B.E., University of Gorakhpur; M. Tech., Indian Institute of Technology, Delhi Chair of Advisory Committee: Dr. Karen Butler-Purry The electric power systems in U.S. Navy ships supply energy to sophisticated systems for weapons, communications, navigation and operation. The re...

During late April 1989, Green Bay, Lake Michigan water was sampled for dissolved concentrations of lead and cadmium. Samples used to document horizontal contamination of the water by a research vessel were collected using a rubber boat rowed 2, 50, 100, and 200 m upwind of the anchored mother ship. Samples used to document vertical contamination of the water column by the research vessel were c...

The modern detection process involves more than the location of possible targets by the sensors of the ship. Before sensor information from your ship (or other ships) can be fully used by the weapons system, it must first be processed. Processing involves the extraction of data concerning the course of the target, speed, bearing, range, identity as friend or foe, and type of target (air, surfac...

This paper presents a novel technique to detect ships and estimate their velocities. The technique takes advantage of two existing techniques and inserts some innovation by using the Radon Transform to detect the ship wake and estimate the range velocity component. For detection, cross correlation of split-look is used. To estimate the azimuth velocity component a sequence of single-look SAR im...

The convolution between co-polarization amplitude only data is studied to improve ship detection performance. The different statistical behaviors of ships and surrounding ocean are characterized a by two-dimensional convolution function (2D-CF) between different polarization channels. The convolution value of the ocean decreases relative to initial data, while that of ships increases. Therefore...

Loud hydroacoustic sources, such as naval mid-frequency sonars or airguns for marine geophysical prospecting, have been increasingly criticized for their possible negative effects on marine mammals and were implicated in several whale stranding events. Competent authorities now regularly request the implementation of mitigation measures, including the shut-down of acoustic sources when marine m...

Target detection is a conventional problem for synthetic aperture radar (SAR) image. The technology of target detection is very useful in striking military targets, such as ship, tanks, armoured personnel carriers, trucks, bulldozers, cannon and howitzers. Discriminating target from clutter is a challenging task in Automatic target detection (ATD) problem. Different types of clutter and their d...

The ocean connects all continents and is an important space for human activities. Ship detection with electro-optical images has shown great potential due to the abundant imaging spectrum and, hence, strongly supports activities in ocean. A suitable can obtain effective complex marine environments, which premise of ship detection. This paper provides overview methods environments. sea–sky backg...