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Global Positioning System Air Traffic
1,060 wordsIt has been estimated that air traffic will double within the next ten years. Maintaining our current accident rate, with double the traffic, would mathematically lead to twice as many accidents as we currently experience every year. That prospect is unacceptable (UK and International Press). There has been obvious growing concern with our airspace due to the anticipated expected growth in air traffic in the years to come. These concerns are not unwarranted with technology increasing at a furiou...
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A New Mobile Robot Navigation Algorithm
1,655 wordsA New Mobile Robot Navigation Algorithm By using Fuzzy Logic Control and Virtual Target Technique Dr. Omid Reza Esmaeili Motlagh Intelligent Systems and Robotics (ISRL) Lab Institute of Advanced Technology, University Putra Malaysia (UPM), Malaysia Abstract A new fuzzy logic control system is developed for reactive navigation of a behavior-based mobile robot. The robot perceives its environment through an array of eight sonar sensors and self positioning-localization sensors. While the fuzzy log...
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A New Mobile Robot Navigation Algorithm
1,651 words... o virtual target switch applied in this method, robot is able to quit limit cycles and find a way out of the dead end. Even in loop shapes like in Fig. 7. a, still robot can find the opening at point C due to the fuzzy logic target seeking and obstacle avoidance behaviors. The algorithm shows its major weakness when it fails to reach the goal in such a concave and recursive U-shape environment shown in Fig. 7. b. This is because the robot encounters another local minimum at the location B an...
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Shown In Figure Speed Of Light
1,780 wordsH 2 >The Stone Age In the early days of man, navigation was composed remembering objects as fixed points of reference. Leaving a trial of stones, marking trees and referencing mountains are examples of primitive navigational aids. The principles of this kind of navigation has evolved and is even present in today? s sophisticated navigational aids.
The Star Age (Trigonometry) Identifying points of reference on land was easy. However, man started to explore the oceans where th...
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Ben R Finney Polynesian Outliers A Computer Simulation Sharp
1,751 wordsAndrew Sharp claims in his Ancient Voyagers in the Pacific published in 1956 that the Pacific Islanders did not possess the necessary navigational and sailing technology to deliberately navigate the distances between islands of the Pacific when colonizing these islands. He claims colonization was random and accidental. However, more recent studies from 1972 on of Pacific navigation suggest deliberate navigation and colonization was possible and did take place. These studies have been supported b...
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Environmental Protection Agency Hudson River
2,189 wordsFor the past year, the subject of polychlorinated biphenyls in the Hudson River and what should be done about them has been discussed by politicians and residents all over the capital region. Often the top story on the local news, the front page headline of the newspaper, the subject of a special on television, or the reason for a town meeting, dredging has become a much debated topic. With all the information being exchanged and opinions published, it is easy for the average person to become co...
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Bank Of The United States Merchant Marine
1,641 wordsDuring the 1500 s to 1800 s, the strength and stature of a country depended upon its political power, which can be traced to how self-sufficient it was. Striving to be self-sufficient was what nations sought after; dependency was not a characteristic of a powerful nation. Raw materials were the most required item to strengthen the central government, and deter interactions, such as trade with other nations. The first country to introduce mercantilism in America was Spain. The spanish american co...
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Coast Guard Gps Receivers
1,954 wordsFINDING YOUR WAY. Andrew Smith I couldnt agree more with Kenneth Grahame's Water Rat in Wind in the Willows: There is nothing-absolutely nothing-half so much worth doing as simply messing about in boats. In or out of em, it doesnt matter. Nothing seems really to matter, thats the charm of it. Whether you get away, or whether you dont; whether you arrive at your destination or whether you reach somewhere else, or whether you never get anywhere at all, youre always busy, and you never do anything ...
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Global Positioning System U S Military
3,776 wordsAs we enter the 21 st century, we are constantly being bombarded with new technologies. From the wireless community to operations that once took weeks to recover and now only take a day or so, our world will never be the same. Another technology that is revolutionizing the world we live in is the Global Positioning System or GPS. The first GPS satellite was called GPS Block I. Launched in 1978, it was a developmental satellite. Another nine Block I satellites were launched through 1988. GPS is t...
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Gps Satellites Gps Receivers
3,463 wordsThe new Avionics Modernization Program (AMP) systems installed in the F- 111 E and EF- 111 A have raised their share of questions, so I have decided to continue my series of Everything You Always Wanted To Know handouts to you pilots, navigators, and maintenance technicians on how the cotton-picked thing works. This informational pamphlet is an overview of the GPS system as a whole, NOT the system- specific hardware that you find in your respective aircraft. Ill cover the basic theory of operati...
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Celestial Bodies Earths Surface
515 wordsNavigation is the science of conducting a vessel to a certain destination. The two types of navigation that I will discuss are global positioning using satellites and celestial navigation. For centuries sailors have guided their ships across the oceans by celestial navigation or nautical astronomy. This is the art of finding position by observing the sun, moon, stars and planets. As they journey for some distance, travelers observe that the celestial bodies appear to change their paths across th...
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