![]() ![]() This data will be made available, via secure intranet connections, to government, industry, and university researchers. Time-variant observables from various technologies will be obtained, typically as wideband time series data, with synopticity of ambient oceanographic data (wind and waves, sound speed, internal waves, tidal mixing, turbulence, optics). The immediate goal is to obtain long-duration, continuous, real-time monitoring of detection performance against various threats (surface craft, AUVs, divers) in a relatively harsh, shallow water environment. Efforts are underway at the Naval Undersea Warfare Center to create the Gould Island Acoustic Observatory in Narragansett Bay, capable of validating emerging security technologies. Port protection can be enhanced with the establishment of a dedicated shallow-water testbed to evaluate new acoustic and light-based technologies. Finally, we briefly describe a complimentary land perimeter intruder detection system consisting of an array of fibre optic accelerometers. Furthermore, we describe how the OptaMarine fibre-optic hydrophone array fits into an integrated multi-layered approach to port and harbour security consisting of active sonar for diver detection and hull imaging, as well as thermal imaging and CCTV for surface monitoring. Results obtained from an at sea trial of a 96-channel hydrophone array are given, showing the passive detection and tracking of a diver, small surface craft and big ocean going ships beyond the horizon. Interrogated via a long (~50km) optical fibre data link, the acoustic date is processed using the latest open architecture sonar processing platform, ensuring that acoustic targets below, on and above the surface are detected, tracked and classified. Using multiple sub-arrays, extended perimeters many tens of kilometres in length can be monitored. Based upon an optical architecture of time and wavelength multiplexed interferometric hydrophones, the array is comprised of a series of hydrophone sub-arrays. Physically the fibre-optic hydrophone array is in the form of a lightweight cable, enabling rapid deployment from a small vessel. While the bomb didn't do what was planned (collapse the North Tower into the South Tower), it did kill six people and injured thousands of people.We describe a fibre-optic hydrophone array system architecture that can be tailored to meet the underwater acoustic surveillance requirements of the military, counter terrorist and customs authorities in protecting ports and harbours, offshore production facilities or coastal approaches. In 1993, in the year of Robert Fournier's passing, on February 26th, a truck bomb exploded in the garage under the North Tower of the World Trade Center. The film would later go to win four Oscars including Best Picture, Best Original Screenplay, Best Director and Best Actor in a Leading Role. this film brought attention to autistic savants and was based on the "megasavant" Laurence Kim Peek. In 1988, when he was 58 years old, on December 16th, 1988 the popular film Rain Man was released. It ended up costing $1 billion to clean up the site. Radiation leaked into the environment, resulting in a rating of 5 on a scale of 7 ("Accident With Wider Consequences"). In 1979, by the time he was 49 years old, on March 28th, a partial nuclear meltdown occurred at the power plant at Three Mile Island Pennsylvania. In the same speech, he outlined the benefits of democracy which he said were economic opportunity, employment, social security, and the promise of "adequate health care". In 1941, Robert was just 11 years old when in his State of the Union address on January 6th, President Roosevelt detailed the "four freedoms" that everyone in the world should have: Freedom of speech, Freedom of worship, Freedom from want, and Freedom from fear. While his disappearance was front page news, his fate was never discovered and after 40 years the case was closed, still without knowing if Crater was dead or alive. His wife didn't know what happened, his fellow Justices had no idea, and his mistresses (he had several) said that they didn't know. His disappearance was reported to the police on September 3rd - almost a month later. Supreme Court Judge Joseph Crater went through papers in his office, destroyed some of them, withdrew all his money from the bank - $5,150, sold his stock, met friends at a restaurant for dinner and disappeared after getting into a taxi (or walking down the street - his friends' testimony later changed). ![]() ![]() In 1930, in the year that Robert Fournier was born, on August 6th, N.Y. Refresh this page to see various historical events that occurred during Robert's lifetime. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |