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Beamspace Phase Solving Algorithm for Elevation Angle Estimation
IEEE Signal Processing Letters, 2022Sheng Chen, Yongbo Zhao, Yili Hu
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Planar covariation of elevation angles in prosthetic gait [PDF]
Gait & Posture, 2012 In order to achieve efficacious walking, transfemoral amputees must adapt coordination within both the artificial and the sound lower limb. We analyzed kinematic strategies in amputees using the planar covariation of lower limb segments approach. When the elevation angles of the thigh, shank and foot are plotted one versus the others, they describe a ...
Leurs, Françoise +5 more
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Impact Analysis of the Elevation Angle on Azimuth Angle of Arrival Estimation
2025 33rd Signal Processing and Communications Applications Conference (SIU)Rıdvan Cennet +5 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.
William C.-Y. Lee, Robert H. Brandt
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Elevation angle dependence in tropical regions
International Journal of Satellite Communications, 1990AbstractThe variation of path attenuation with elevation angle has been generally considered to approximate a cosecant law, certainly between elevation angles of about 10° and 50°. Such a theory relies on the assumption that the attenuation layer is statiform for most of the time, and is therefore probably reasonable for temperate regions.
B. J. Bowthorpe +3 more
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The Radar Measurement of Low Angles of Elevation
Proceedings of the Physical Society. Section B, 1956The errors which occur in the measurement of low angles of elevation by centimetric radar on a flat ground site are estimated theoretically and compared with experimental measurements. It is demonstrated that a very considerable improvement in angular accuracy is obtained by erecting a screen to intercept the ground-reflected wave.
J S Hey, S J Parsons
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Measurement of elevation angles of h.f. waves
Proceedings of the Institution of Electrical Engineers, 1969Several techniques for the measurement of elevation angles of radio signals in the h.f. band with a vertical array of aerials are described. These include the Wilkins-Minnis method, null-selection and elevationscanning techniques, and a method of wavefront analysis in which the amplitudes and phases of the aerial signals are measured.
P.J.D. Gething +3 more
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Design of a monopulse SAR system for the determination of elevation angles
IEEE Transactions on Geoscience and Remote Sensing, 1994Terrain height variations in mountainous areas cause problems in the radiometric correction of SAR images. The authors propose a novel SAR system which exploits the monopulse principle to determine the elevation angle and thus the height at the different parts of the image.
Zink, M., Oettl, H., Freeman, A. *)
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Azimuth and elevation angle estimation with no failure and no eigen decomposition
Signal Processing, 2006Recently, Wu et al. proposed a scheme for two-dimensional direction of arrival angle estimation for azimuth and elevation angles, using the propagator method. An advantage of this method over the classical subspace based algorithms, such as ESPRIT and MUSIC, is that it does not apply any eigenvalue decomposition (EVD) to the cross spectral matrix or ...
Nizar Tayem, Hyuck M. Kwon
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