‘Navigation: Land, Sea, Air and Space’

Kayton, Myron

doi:10.1017/s0373463300010845

Cited by 11 publications

(9 citation statements)

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“…In this book, we are principally concerned with the first, localization, question, and maintain that finding a robust and reliable solution to this problem is an essential precursor to answering the remaining two questions. The problem of position determination has been of vital importance throughout the history of humanity [76]. The basic process of distance measurement, correlation, and triangulation was known to the Phoenicians, who successfully managed to build and maintain quite accurate maps of the Mediterranean area.…”

Section: The Navigation Problemmentioning

confidence: 99%

Directed Sonar Sensing for Mobile Robot Navigation

1992

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Section: The Navigation Problemmentioning

confidence: 99%

Directed Sonar Sensing for Mobile Robot Navigation

1992

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“…It was selected by the ICAO (International Civil Aviation Organization) in 1946 as the international all-weather landing aid [1]. It is currently the primary worldwide aircraft landing system.…”

Section: Introductionmentioning

confidence: 99%

GPS Landing System Reference Antenna

Lopez

2010

IEEE Antennas Propag. Mag.

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The GPS landing system (GLS) is a reality today, and will undoubtedly become the workhorse system in the future. GPS aircraft navigation is currently utilized for aircraft en-route, terminal, and initial-approach navigation. It is expected that in 2009, a Category I GPS landing system will start its initial phase of a worldwide deployment. The ARL-1900 antenna was designed specifically to satisfy the stringent requirements for the Category I, II, and III GPS landing system reference-receiver stations.A difficult problem for a Category I, II, and III GPS landing systems is the mitigation of ground-reflected multipath effects. The antenna must provide coverage of the upper hemisphere while suppressing ground-reflected multipath. In addition, the antenna must operate at the L1, L2, and L5 GPS frequencies, have right-hand circular polarization, and ideally have constant carrier and code (group) delay throughout the coverage region. Over a period of 15 years, BAE Systems has developed the ARL-1900 antenna, a unique antenna with near-ideal performance that satisfies the stringent requirements for a Category I, II, and III GPS landing systems. This paper reviewsthe requirements for a GPS landing system reference antenna, presents the design principles for the ARL-1900 antenna, describes its implementation, and presents performance data.

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“…This makes our method-and, specifically, our networks-easy to use in constructing solutions to robotics problems. Robot navigation does not refer to a single problem; rather it refers to a family of problems (see Kayton, 1988;Kuipers, 1978;Kuipers, 1979;Kuipers and Levitt, 1988;Levitt and Lawton, 1990). In these problems it is generally assumed that visual cues (or landmarks, or features) appear in the environment, and that an autonomous robot is to move through the environment using observations of cues for guidance.…”

Section: Introductionmentioning

confidence: 99%

“…(Typical distinguishing assump-*Department of Mathematical Sciences, author to whom correspondence should be addressed **Department of Computer and Information Science tions include, for example, dimensionality, boundedness, and structure of the environment, whether or not cues or a specific reference direction is distinguishable, whether or not cues are accessible, whether or not there are obstacles in the environment, and if there are obstacles in the environment, the character of the obstacles.) Numerous computational approaches have been developed to address such problems (Kayton, 1988; Kuipers, 1978;Kuipers, 1979;Kuipers and Levitt, 1988; Levitt and Lawton, 1990); these approaches involve triangulation, ranging sensors, stereo techniques, dead reckoning, and inertial navigation, for example. Often, however, these approaches provide less than acceptable results: they tend to be brittle, accumulate error, and be limited by the range of an active sensor; they often depend on accurate measurement of distance and direction, and are typically non-or only weakly perceptual.…”

Section: Introductionmentioning

confidence: 99%

Some Artificial Neural Networks for Visual Navigation

Penna

1994

Journal of Intelligent Material Systems and Structures

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In this paper we illustrate how we can use artificial neural networks (ANN's) to construct topologically accurate physical maps of environments from visual observations, and how we can use these maps for navigation. The method we use to build our ANN's is inspired by biological processes, making it more robust than comparable machine methods. Since the nodes, weights, and threshold functions of our ANN's all have physical meanings, we can easily predict network topologies and build networks, avoiding traditional trial-and-error training. This makes our method easy to use in constructing solutions to robotics problems.

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‘Navigation: Land, Sea, Air and Space’

Cited by 11 publications

References 0 publications

Directed Sonar Sensing for Mobile Robot Navigation

Directed Sonar Sensing for Mobile Robot Navigation

GPS Landing System Reference Antenna

Some Artificial Neural Networks for Visual Navigation

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