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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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Cooperative localization using angle-of-arrival information
11th IEEE International Conference on Control & Automation (ICCA), 2014This paper studies the cooperative localization problem of sensor networks using local angle-of-arrival measurements in two scenarios. (i) The angle-of-arrival information can be mutually measured by pairs of sensors in their local frames which do not share the same orientation; (ii) The angle-of-arrival information can not be mutually measured by ...
Jubin Zhong +3 more
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Optimization of Angle-of-Arrival GPS Integrity Monitoring
2015The paper considers the navigation satellite systems integrity monitoring method which is based on the differences between measured and calculated azimuth and elevation of the navigation signal source respectively. Probability-based integrity monitoring characteristics such as probability of false detection (false alarm probability) and the probability
Igor A. Tsikin, Antonina P. Melikhova
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Multipath angles-of-arrival on a terrestrial microwave link
IEEE Transactions on Communications, 1990Results are presented of experimental measurements of the angle of arrival and amplitude of the individual rays in a multipath microwave propagation situation. On the basis of extensive data collected on a 31.5-km path, statistical distributions that are expected to be of assistance in the design of diversity, especially angle-diversity, microwave ...
A. R. Webster, T. S. Merritt
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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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A Fuzzy Logic Approach to Angle of Arrival Averaging
2010 IEEE 72nd Vehicular Technology Conference - Fall, 2010This paper derives a fuzzy logic-based approach to the averaging of angle of arrival (AOA) information. It is shown that the maximum likelihood (ML) approach to AOA averaging can be considered as a special case of the fuzzy logic approach. Computer simulations show that the ML and fuzzy logic approaches produce very similar results if the membership ...
Sichun Wang, Robert J. Inkol
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A unitary transformation method for angle-of-arrival estimation
IEEE Transactions on Signal Processing, 1991Eigenstructure methods for estimating angles of arrival of radiation sources generally require complex computations in computing eigencomponents of the covariance matrix and calculating the search function. A unitary transformation method that transforms the complex covariance matrix of an equally spaced linear array, which is Hermitian persymmetric ...
Keh-Chiarng Huarng, Chien-Chung Yeh
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Radar Angle-of-Arrival Estimation
2013The paper focus on interferometer angle error and on the signal processing required for interferometry, but also introduce monopulse angle-of-arrival for comparison. This chapter, derive the basic equations for monopulse angle estimation and discuss the fundamentals of eigen-based superresolution techniques.
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Tropospheric Effects on Angle-of-Arrival
2013In this chapter, we characterize the effects of angle bias due to refraction and angle precision due to turbulence. As a result, angle bias due to refraction can be calibrated and removed, if possible, and any residual error can be quantified in the interferometer angle error budget.
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