Zobrazeno 1 - 10
of 261
pro vyhledávání: '"direction finder"'
Publikováno v:
Doklady Belorusskogo gosudarstvennogo universiteta informatiki i radioèlektroniki, Vol 22, Iss 1, Pp 64-73 (2024)
One of the methods for measuring the direction of arrival of an electromagnetic wave from a radio source by an automatic direction finder with a small antenna base and a limited number of channels of the radio receiving path is proposed. The problems
Externí odkaz:
https://doaj.org/article/ed8c351c07594e8aa2852808838a017e
Publikováno v:
Радіоелектронні і комп'ютерні системи, Vol 0, Iss 4, Pp 88-99 (2023)
The subject of this study is the algorithms for measuring the angular positions of radio emission sources. The goal of this study is to develop an improved algorithm for signal processing in amplitude direction finders that will provide several unamb
Externí odkaz:
https://doaj.org/article/f4284574526f4051a074d3900ba27c8a
Publikováno v:
Технічна інженерія, Vol 2, Iss 92, Pp 199-206 (2023)
The experimental assessment of direction finding error for searchless methods of spectral correlation-interferometric radio direction finding was performed. The results of experimental studies on a laboratory model agree with the results of theoretic
Externí odkaz:
https://doaj.org/article/25c5fa8639464feab24aba54856b62c6
Autor:
I. D. Pavlov
Publikováno v:
Известия высших учебных заведений России: Радиоэлектроника, Vol 26, Iss 2, Pp 25-36 (2023)
Introduction. Direction finding errors degrade the performance of any direction finding system. In the case of a phase direction finder, the cause of errors, among other things, is related to the non-identity of the receiving channels. Research into
Externí odkaz:
https://doaj.org/article/688ce32b41de414da06ea51b00374dd3
Autor:
Jong-Hwa Jeon, Myoung-Ho Chae
Publikováno v:
Journal of Electromagnetic Engineering and Science, Vol 22, Iss 3, Pp 218-228 (2022)
In this study, a compact, low-power 2D phase comparison direction finder was designed and fabricated. For the design of the direction-finding (DF) receiver, a 2D phase comparison DF equation was derived from the structure of four uniformly arranged a
Externí odkaz:
https://doaj.org/article/346e26d6cd89450a81c1f8615693e7bf
Publikováno v:
Naučno-tehničeskij Vestnik Informacionnyh Tehnologij, Mehaniki i Optiki, Vol 21, Iss 6, Pp 977-983 (2021)
Obtaining accurate phase values of the output signals for the receiving elements of a phased array antenna is one of the crucial issues relating to radio-photon technologies in radar and radio communication. The paper considers measuring the phase di
Externí odkaz:
https://doaj.org/article/62b30781ba5a48e3b2f64cb83713ef77
Akademický článek
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Autor:
Ammar Alammari, Ammar Ahmed Alkahtani, Mohd Riduan Ahmad, Fuad M. Noman, Mona Riza Mohd Esa, Zen Kawasaki, Sieh Kiong Tiong
Publikováno v:
IEEE Access, Vol 8, Pp 190064-190082 (2020)
Despite the significant progress in the understanding of the phenomenon of lightning and the physics behind it, locating and mapping its occurrence remain a challenge. Such localization and mapping of very high frequency (VHF) lightning radiation sou
Externí odkaz:
https://doaj.org/article/413652a499674b96af7a73e2f3826eeb
Publikováno v:
Vestnik KRAUNC: Fiziko-Matematičeskie Nauki, Vol 27, Iss 2, Pp 95-104 (2019)
For the study of powerful electromagnetic radiation from thunderstorms, a VLF direction finder was created at the Institute of Cosmophysical Research and Radio Wave Propagation of the Far Eastern Branch of the Russian Academy of Sciences, capable of
Externí odkaz:
https://doaj.org/article/c8dc6e10b1ab4e62951279978b0a8bca
Publikováno v:
Вестник Дагестанского государственного технического университета: Технические науки, Vol 46, Iss 3, Pp 66-78 (2019)
Objectives To develop software methods that can improve the reliability of airfield quasi-Doppler automatic direction finders (ADFs).Method. Mathematical models and algorithms of software fault recovery of aerodrome quasi-Doppler automatic radio dire
Externí odkaz:
https://doaj.org/article/1bfada53ecca48d38d414758d36fb85e