Results 1 to 10 of about 13,242,853 (317)

A Direct Coarray Interpolation Approach for Direction Finding [PDF]

open access: yesSensors, 2017
Sparse arrays have gained considerable attention in recent years because they can resolve more sources than the number of sensors. The coprime array can resolve O ( M N ) sources with only O ( M + N ) sensors, and is a popular sparse ...
Tao Chen, Muran Guo, Limin Guo
doaj   +5 more sources

Acoustical Direction Finding with Time-Modulated Arrays [PDF]

open access: yesSensors, 2016
Time-Modulated Linear Arrays (TMLAs) offer useful efficiency savings over conventional phased arrays when applied in parameter estimation applications. The present paper considers the application of TMLAs to acoustic systems and proposes an algorithm for
Ben Clark, James A. Flint
doaj   +2 more sources

GNSS direction finding

open access: yesGeodesy and Cartography, 2012
GNSS receivers provide position information in a convenient way. However, additional orientation information cannot be fulfilled directly by a single antenna receiver up to now. This paper describes an approach for determining the orientation by a single
David Grimm
doaj   +4 more sources

Some of Problems of Direction Finding of Ground-Based Radars Using Monopulse Location System Installed on Unmanned Aerial Vehicle [PDF]

open access: yesSensors, 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
doaj   +2 more sources

Computationally Efficient Direction Finding for Conformal MIMO Radar [PDF]

open access: yesSensors
The use of conformal arrays offers a significant advancement in Multiple-Input–Multiple-Output (MIMO) radar, enabling the placement of antennas on irregular surfaces.
Haochen Wang, Zhiyu Yu, Fangqing Wen
doaj   +2 more sources

Digital spectral correlation method for measuring radio signal reception delay and direction finding

open access: yesТехнічна інженерія, 2021
A promising direction for the development of radio monitoring tools is the use of passive and semi-active radar stations to assess the air situation using the difference-rangefinder method. A digital high-speed spectral correlation method for determining
V.V. Tsyporenko   +3 more
doaj   +1 more source

A Direction-Finding Antenna Inserted into the Surface of Cylindrical Conductor Body [PDF]

open access: yesJournal of Electromagnetic Engineering and Science, 2022
In this letter, a direction-finding antenna inserted into the surface of a cylindrical conductor body, with the conductor material in front of the antenna, is presented.
Jaesik Kim
doaj   +1 more source

Research into the Influence of Millimeter-Wave Antennas on Direction Finding Errors by Phase Method

open access: yesИзвестия 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
doaj   +1 more source

Dual-station direction finding location based on disturbance detection [PDF]

open access: yesITM Web of Conferences, 2022
The application of direction finding location technology in electronic warfare is becoming more and more extensive. Aiming at the problem that the traditional location method will greatly affect the location accuracy when the measurement information of ...
He Wentao   +3 more
doaj   +1 more source

Biologically inspired direction‐finding for short baseline

open access: yesIET Radar, Sonar & Navigation, 2021
The optimal implementation for a biologically inspired coupling structure to overcome the limitation of short baseline direction‐finding is determined. This approach is inspired by the Ormia ochracea, a parasitoid insect living in North America.
Jiazhi He, Zhen Huang, Xuefeng Feng
doaj   +1 more source

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