Synthetic aperture sonar on AUV

Fernandez, Jose E.; Christoff, James T.; Cook, Daniel

doi:10.1109/oceans.2003.178136

Cited by 17 publications

(5 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The minimum along track sampling rate was determined having an array overlap of at least 1/2 of succeeding pings (the pulse transmission). The SACLANCEN group developed (along with others) a micro-navigation technique where the differential motion of the hydrophone array was estimated from the many correlations of pair of hydrophone elements from succeeding pulses [23][24][25][26][27][28]. However, this does require the array overlap to be more than 1/2 and so it does increase the along-track sampling rate to more than the generally accepted minimum and thus compromise the area coverage performance.…”

Section: Gough Et Al: Sas Historymentioning

confidence: 99%

Synthetic Aperture Sonar: The Past, the Present and the Future

GOUGH,

HAYES

2023

Sonar Signal Processing 2004

View full text Add to dashboard Cite

This presentation gives an overview of the state-of-the-art in side-looking acoustic imaging using synthetic aperture techniques. It starts with the development of aperture synthesis, gives the historical background of synthetic aperture sonar (SAS), and then describes the salient differences between that and its electromagnetic equivalent; synthetic aperture radar (SAR). This paper takes a broad view of how SAS developed and where these developments occurred. We look at the past (with close attention paid to the patent literature), the present, as well as to hazard some guesses as to the future.

show abstract

Section: Gough Et Al: Sas Historymentioning

confidence: 99%

Synthetic Aperture Sonar: The Past, the Present and the Future

GOUGH,

HAYES

2023

Sonar Signal Processing 2004

View full text Add to dashboard Cite

show abstract

“…The BBSAS has been successfully tested onboard CSS's advanced sensor tow vehicle [6]. Recently SAS21 was integrated into the Reliant AUV and has undergone its first series of sea tests [7]- [8]. A photograph of this sea-going system is shown in Fig.…”

Section: A Low Frequency Imaging Synthetic Aperture Sonarsmentioning

confidence: 99%

Progress in the development of buried minehunting systems

Clem

Lopes

2003

Oceans 2003. Celebrating the Past ... Teaming Toward the Future (IEEE Cat. No.03CH37492)

View full text Add to dashboard Cite

-In FY 2002, the Office of Naval Research (ONR) initiated a project to provide a deliberate capability for hunting buried sea mines. The objectives and approaches for this buried minehunting (BMH) project and the sensor technologies being pursued have been reported [1]. In this paper, we will describe progress and current status of this project, including developments in sensors, platforms, system concepts, and testing. Discussion of relevant tests that have been conducted for individual sensors and sensor combinations will be included. Future plans to test and demonstrate these technologies and concepts are discussed.

show abstract

“…Today, autonomous vehicles are often employed to explore an area and investigate objects of interest located within that area. The Air Force, Navy and NASA all utilize autonomous vehicles to collect information, 9,29,35 and their specific roles vary application by application. For instance, in the Air Force's intelligence, surveillance and reconnaissance (ISR) missions, one goal is to gather enough information to identify whether the object of interest is a friendly object or a threatening opponent.…”

Section: Introductionmentioning

confidence: 99%

“…For instance, in the Air Force's intelligence, surveillance and reconnaissance (ISR) missions, one goal is to gather enough information to identify whether the object of interest is a friendly object or a threatening opponent. Other examples include the Navy's underwater mine-finding mission where an unmanned underwater vehicle is used to search for underwater mines, 9 and NASA's Mars exploration mission where unmanned ground vehicles are sent to investigate environmental conditions on Mars. 35 Although the benefits resulting from employing unmanned vehicles in remote areas are obvious, the utilization of the vehicles is often restricted by limited time and resources.…”

Section: Introductionmentioning

confidence: 99%

Robotic Exploration with Non-Isotropic Sensors

Hyun

Jackson

Klesh³

et al. 2009

AIAA Guidance, Navigation, and Control Conference

View full text Add to dashboard Cite

In this paper, we present an experimental implementation of an information-based path planning algorithm utilizing a three-wheeled ground robot. The robot is equipped with multiple ultrasonic sensors with which it collects information about objects of interest located within the exploration area. The mission of the robot is to identify the radius of the objects. This problem is challenging as the sensors are non-isotropic, i.e., the sensors have a limited angle of view, and the sensors are range-based, i.e., the amount of information collected by the sensors depends upon the distance from the sensor to the object of interest. The implementation shown relies on interpreting the information gathered as the inverse of uncertainty. Once a specified level of uncertainty reduction is achieved, the object is considered identified. Experimental results for a couple of different objects are provided. The results show close agreement with predicted simulations.

show abstract

Synthetic aperture sonar on AUV

Cited by 17 publications

References 6 publications

Synthetic Aperture Sonar: The Past, the Present and the Future

Synthetic Aperture Sonar: The Past, the Present and the Future

Progress in the development of buried minehunting systems

Robotic Exploration with Non-Isotropic Sensors

Contact Info

Product

Resources

About