Results 1 to 10 of about 359,797 (235)
Design and Fabrication of a Compact 2D Phase Comparison Direction Finder [PDF]
Journal of Electromagnetic Engineering and Science, 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 ...
Jong-Hwa Jeon, Myoung-Ho Chae
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Configuration of a Monopulse Antenna Assembly for Small Diameter Flight Vehicle Applications [PDF]
Journal of Electromagnetic Engineering and Science, 2021 In this letter, configuration of a monopulse direction-finding (DF) antenna assembly is presented which can be applied for small diameter flight vehicle applications.
Jaesik Kim
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Sensors, 2021 Direction finding (DF) systems are used to determine the direction-of-arrival (DoA) of electromagnetic waves, thus allowing for the tracking of RF sources. In this paper, we present an alternative formulation of antenna arrays for modeling DF systems. To
Bernardo Fabiani +5 more
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Single Transmitter Direction Finding Using a Single Moving Omnidirectional Antenna
Sensors, 2022 Traditional direction-finding systems are based on processing the outputs of multiple spatially separated antennas. The impinging signal Angle-of-Arrival (AOA) is estimated using the relative phase and amplitude of the multiple outputs that are sampled ...
Guy Eliyahu +4 more
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Sensors, 2020 Locating active radars in real environmental conditions is a very important and complex task. The efficiency of the direction finding (DF) of ground-based radars and other microwave emitters using unmanned aerial vehicles (UAV) is dependent on the ...
Adam Rutkowski, Adam Kawalec
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Performance-Enhancement of Platform-Based, HF Direction-Finding Systems Using Dynamic Mode Selection
IEEE Open Journal of Antennas and Propagation, 2021 We present a method to enhance the accuracy of platform-based, high-frequency (HF) direction-finding (DF) systems using dynamic mode selection. To improve bandwidth and efficiency, the metallic platform supporting the DF array is used as the primary ...
Kai Ren, Ruyu Ma, Nader Behdad
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Approximate analysis of DF ambiguity probabilities for an interferometer direction‐finding system using gamma distributions [PDF]
Electronics Letters, 2019 To obtain high direction‐finding (DF) accuracy in electronic warfare applications, it is necessary to maximise the number of effective data points with a small angle‐of‐arrival error. Thus, a method to obtain the DF ambiguity probability for the selected set of array spacing is required.
J.H. Lee, J.I. Jo, H.K. Ryu, B.J. Park
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Research into the Influence of Millimeter-Wave Antennas on Direction Finding Errors by Phase Method
Известия высших учебных заведений России: Радиоэлектроника, 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.
I. D. Pavlov
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A Low Complexity Direction Finding System Based on a Six-Port Integrated MIMO Antenna System [PDF]
Jordanian Journal of Computers and Information Technology, 2016 In this paper, a low complexity microwave based direction finding (DF) system is presented. The proposed system consists of single six-port (SP) circuit integrated with a reconfigurable multiple-input-multiple-output (MIMO) antenna system. The SP circuit
Rifaqat Hussain +3 more
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Cross-ambiquity function domain multipath channel parameter estimation [PDF]
, 2011 Cataloged from PDF version of article.A new array signal processing technique is proposed to estimate the direction-of-arrivals (DOAs), time delays, Doppler shifts and amplitudes of a known waveform impinging on an array of antennas from several distinct
Arikan, O., Guldogan, M. B.
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