Abstract: Recent progress in underwater robotics and acoustic communication has led to the development of a new paradigm in ocean science and technology, the Autonomous Ocean Sampling Network (AOSN). AOSN consists of a network of xed moorings and/or autonomous underwater vehicles (AUV), tied together by state-of-the-art acoustic communication technology. The GOATS'2000 (Generic Oceano-graphic Array Technology Systems) Joint Research Program is aimed toward the de-velopment of environmentally adaptive AOSN technology specically directed toward Rapid Environmental Assessment and Mine Counter Measures in coastal environ-ments. The research program combines theory and modeling of the 3-D environmental acoustics with experiments involving AOSN and sensor technology. [Work supported by ONR and SACLANT]

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synthetic aperture sonar

based on the wavenumber algorithm for correcting second order effects are proposed. In addition, a new framework for describing multiple-receiver reconstruction in terms of the bistatic geometry is presented and is a useful aid to understanding. Motion-compensation techniques for allowing Fourier

Abstract – Synthetic aperture sonar (SAS) is emerging as an ideal sensor for autonomous underwater vehicle (AUV) based mine hunting and numerous other applications. By using vehicle motion to create a long synthetic array, image resolution can be increased by an order of magnitude or more compared

Abstract – Synthetic aperture sonars (SAS) and autonomous underwater vehicle (AUV) are two of the most exciting technologies under development by the underwater research and development community. Integration of these technologies promises to produce underwater acoustic imaging systems

We introduce a new bistatic synthetic-aperture imaging method for a radar system consisting of two receivers, which will be referred to as hitchhikers, and a source of opportunity. We assume the receivers �y along arbitrary, but known, �ight trajectories. We develop a correlation-based �ltered

@ Sa majest & la reine, repr~sent~e par le ministre de la Defense nationale, 2004 This technical report presents theoretical and experimental results of phase I of the Technology Investment Fund (TIF) project on low probability of intercept, that is bistatic SAR. In bistatic SAR

ABSTRACT In recent years the Italian Space Agency has been proceeding to the definition and launch of small missions. In this ambit, the BISSAT mission was proposed and selected along with five other missions for a competitive Phase A study. BISSAT mission concept consists in flying a passive SAR

Abstract The performance of real or synthetic aperture sonar (SAS) in shallow waters is degraded by multipath, which leads to ghost targets and reduced image contrast. This loss of image contrast fills in acoustic shadows and is therefore an important limitation for high resolution SAS