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Angle-of-Arrival Estimation for UWB Signals Clustered in Angle
2006 1st International Symposium on Wireless Pervasive Computing, 2006In this study, the new signal model suitable for ultrawide band (UWB) environments with random angle spread is proposed to estimate the angle-of-arrivals (AOAs) of clusters in a UWB indoor or indoor-to-outdoor wireless communication. The estimation technique based MUSIC algorithm is investigated and the estimates of the AOA and distribution parameter ...
null Yong Up Lee +2 more
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Measurement of Angle-of-Arrival
1969While a large number of different types of direction-finder for obtaining the bearings of radio signals have been developed, ranging from simple vertical loop antennas to very complicated systems such as the Wullenweber type in which a narrow beam is used to scan the incoming wave system, very few of them can be applied to the problem of measuring ...
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2011 5th International Conference on Signal Processing and Communication Systems (ICSPCS), 2011
This paper introduces a novel simplistic geometrical disk scattering model in which the local scatterers are uniformly distributed in polar coordinates within a disk centered on the mobile station (MS). The proposed joint uniform distribution in polar coordinates results in a higher concentration of scatterers around the disk center and a lower ...
Alireza Borhani, Matthias Patzold
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This paper introduces a novel simplistic geometrical disk scattering model in which the local scatterers are uniformly distributed in polar coordinates within a disk centered on the mobile station (MS). The proposed joint uniform distribution in polar coordinates results in a higher concentration of scatterers around the disk center and a lower ...
Alireza Borhani, Matthias Patzold
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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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Angle of arrival estimation using spectral interferometry
Journal of Luminescence, 2010We have developed a correlative signal processing concept based on a Mach-Zehnder interferometer and spatial-spectral (S2) materials that enables direct mapping of RF spectral phase as well as power spectral recording. This configuration can be used for precise frequency resolved time delay estimation between signals received by a phased antenna array ...
Z.W. Barber +4 more
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COMSTAR and CTS angle-of-arrival measurements
Annales des Télécommunications, 1980This brief note describes angle of arrival measurement made at Columbus, Ohio, USA, on 11.7 and 28.56 GHz earth-space paths. These measurements indicate that the short term deviation of the angle of arrival exceeds 0.1° for 0.01 percent of the time. Such a fluctuation would indicate that adverse effects may be expected for receiving apertures having ...
R. A. Baxter +3 more
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Angle of arrival detection by ESPRIT method
2017 International Conference on Communication and Signal Processing (ICCSP), 2017The direction of arrival estimation of a signal impinging on a array of antennas is an important aspect in signal processing. In order to estimate the angle, we have to relay on a mathematical function known as “pseudospectrum”. This pseudospectrum estimation methods yields best results, when it is employed along with a superior working algorithm to ...
Pooja Gupta +2 more
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RF angle of arrival-based node localisation
International Journal of Sensor Networks, 2011Several localisation algorithms exist for wireless sensor networks that use angle of arrival measurements to derive node position. However, there are limited options for actually obtaining the angle of arrival using resource-constrained devices. In this paper, we describe a technique for determining node bearings based on radio interferometric angle of
Isaac Amundson +4 more
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Angle-of-arrival estimation in atmospheric turbulence
The Journal of the Acoustical Society of America, 2005An angle-of-arrival estimator is derived for acoustic waves that propagate in atmospheric turbulence. The estimator directly accounts for the effects of random fluctuations in the propagation environment. The first and second moments of the sound field, as derived from the theory of wave propagation in a random medium, and realistic atmospheric ...
Sandra Collier +2 more
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Interferometer Angle-of-Arrival Error Effects
2013The angle error equations derived to this point have reflected only the error performance due to thermal noise effects. However, angle-of-arrival performance can be affected by various sources of error other than thermal noise. In this chapter, we focus on errors that affect angle accuracy as opposed to angle precision.
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