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Cooperative angle-of-arrival position localization
Measurement, 2015Abstract Cooperation among unknown-location nodes can improve network positioning coverage as well as localization accuracy particularly in the poor electronic conditions. This paper investigates the cooperative angle-of-arrival (AOA) positioning based on the Ultra Wideband (UWB) technique.
Jun Xu, Maode Ma, Choi Look Law
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Robust Navigation Using Angle of Arrival Measurements
ION GNSS+, The International Technical Meeting of the Satellite Division of The Institute of NavigationThe majority of conventional radionavigation systems are based on Time of Arrival (TOA) measurements of RF signals. By far the most common method is pseudoranging, mainly a result of the undisputed success of Global Navigation Satellite Systems (GNSS) as a ubiquitous technology, especially in aviation.
Osechas, Okuary +4 more
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Two-dimensional angle of arrival fluctuations
The Journal of the Acoustical Society of America, 1996Angle of arrival fluctuations are one manifestation of acoustic propagation through a turbulent flow. Here the two-dimensional angle of arrival distribution for a 670-m acoustic path through a high Reynolds number flow in a tidal channel is examined and its origin and relationship to the flow field is determined.
Daniela Di Iorio, David M. Farmer
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Network localization using angle of arrival
2008 IEEE International Conference on Electro/Information Technology, 2008In this paper, we propose two localization methods using angle of arrival (AoA) information. We assume that nodespsila axis orientations are unknown. Therefore, all AoA measurements are employed to calculate the angle differences of two different nodes viewed by the third one.
null Yanping Zhu +2 more
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The elevation angle of mobile radio signal arrival
IEEE Transactions on Vehicular Technology, 1973Field measurements of mobile radio signals have shown that signal arrival is concentrated in elevation angles lower than 16°. This suggests use of an omnidirectional antenna with vertical directivity, instead of the usual whip antenna, to increase average signal strength as a further improvement in the advantages of diversity reception.
W. Lee, R. Brandt
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2004
The angle of arrival (AOA) is the most valuable piece of information that can be obtained from an enemy radar because the radar cannot change its position drastically in a very short time frame (i.e., a few milliseconds). Unfortunately AOA information is also the most difficult information to obtain. It requires several antennas with receivers. The two
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The angle of arrival (AOA) is the most valuable piece of information that can be obtained from an enemy radar because the radar cannot change its position drastically in a very short time frame (i.e., a few milliseconds). Unfortunately AOA information is also the most difficult information to obtain. It requires several antennas with receivers. The two
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A simple technique for angle of arrival measurement
2008 IEEE Antennas and Propagation Society International Symposium, 2008A simple method to calculate the angle of arrival is presented in this paper. The advantages of this method are the unlimited number of the detected angle of arrival in hand and the fact that we donpsilat need to know the nature of the radiating sources in the other hand. However, some disadvantages have been seen.
Akhdar, Oussama +3 more
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Angle-of-arrival statistics for low resolution antennas
IEEE Transactions on Antennas and Propagation, 2002In a scattering environment, the propagation paths to a receiving antenna arrive from a certain angular spread of directions. For a low-resolution antenna, an apparent direction of arrival may be defined as the azimuth direction of maximum power. A small array is used as the antenna and the spatial derivative of the phase along the array axis is taken ...
Andersen, Jørgen Bach +1 more
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Nature, 1953
IT has been suggested by Scott1 that uncoupled F-region Z echoes are due to longitudinally propagated waves reflected from an area near the magnetic zenith.
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IT has been suggested by Scott1 that uncoupled F-region Z echoes are due to longitudinally propagated waves reflected from an area near the magnetic zenith.
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Angle-of-arrival measurements of ionospheric irregularities
Canadian Journal of Physics, 1987Recent improvements in instrumentation permit sufficient resolution in angular-deviation measurements to yield information on the shape of irregularities. The expected deviation imposed upon very high frequency signals from an orbiting satellite by an irregularity with a Gaussian electron-density distribution is modelled.
E. Griffioen, G. F. Lyon
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