Results 261 to 270 of about 13,242,853 (317)
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Wireless Communications Systems, 2018
You’ve identified an interfering signal, now you need to track it to its source. This is done with various methods of direction finding. The least effective way to locate an emitter is to use a non-directional antenna and just try to go in the direction ...
Helgi Thor Ingason, Haukur Ingi Jonasson
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You’ve identified an interfering signal, now you need to track it to its source. This is done with various methods of direction finding. The least effective way to locate an emitter is to use a non-directional antenna and just try to go in the direction ...
Helgi Thor Ingason, Haukur Ingi Jonasson
openaire +2 more sources
Direction Finding Based on Time-Modulated Array With Multiharmonic Analysis
IEEE Transactions on Antennas and Propagation, 2020Direction finding with time-modulated array (TMA) has attracted considerable attention recently. In this communication, a multiharmonic analysis for direction finding based on TMA is proposed.
Jingfeng Chen +6 more
semanticscholar +1 more source
Direction-Finding Based on Time-Modulated Array Without Sampling Synchronization
IEEE Antennas and Wireless Propagation Letters, 2020A two-element direction-finding method based on a time-modulated array (TMA) without sampling synchronization that exploits new asymmetric time sequences is proposed.
Gang Ni +4 more
semanticscholar +1 more source
Direction Finding with UWB and BLE: A Comparative Study
IEEE International Conference on Mobile Adhoc and Sensor Systems, 2020Using Angle-of-Arrival based on Phase-Difference-of-Arrival is a recent trend in indoor positioning. Although the basic techniques for direction estimation have been known and used for a long time in different application scenarios (e.g., RADAR), the ...
L. Botler +3 more
semanticscholar +1 more source
Spatial Spectrum Direction Finding by Programmable Metasurface With Time Modulation
IEEE Antennas and Wireless Propagation LettersA novel direction-finding method based on programmable metasurface and time modulation theory is proposed and verified. Its principle is as follows.
Qingkui Zhan +5 more
semanticscholar +1 more source
In-lab validation of jammer detection and direction finding algorithms for GNSS
International Conference on Localization and Global Navigation Satellite System, 2019Our paper focuses on the detection and direction finding of jamming signals in Global Navigation Satellite System (GNSS)bands. A methodology for in-lab validation for three selected jammer detection algorithms and two selected jammer direction finding ...
Ruben Morales Ferre +3 more
semanticscholar +1 more source
Direction Finding by Time-Modulated Linear Array
IEEE Transactions on Antennas and Propagation, 2018The direction finding method by the time-modulated linear array (TMLA) is analyzed and verified. The direction of arrival (DOA) can be calculated out by analyzing the spectrum characteristic of the received signal after the time modulation. Its principle
Chong He +6 more
semanticscholar +1 more source
Direction Finding of Linear Frequency Modulation Signal With Time-Modulated Array
IEEE Transactions on Antennas and Propagation, 2019This communication proposes a novel method for finding the direction of the linear frequency modulation (LFM) signal, which has a bandwidth that is much larger than that of the modulated frequency, based on the time-modulated array (TMA).
Jingfeng Chen +7 more
semanticscholar +1 more source
Direction Finding for Bistatic MIMO Radar with Unknown Spatially Colored Noise
International Conference on Digital Signal Processing, 2018In this paper, we investigate the problem of joint direction-of-departure (DOD) and direction-of-arrival (DOA) estimation for bistatic multiple-input multiple-output radar with unknown spatially colored noise.
Fang-qing Wen +3 more
semanticscholar +1 more source
The Journal of the Acoustical Society of America, 2003
A method of determining the bearing of a source of a sonar signal comprising determining the phase of a cyclic variation of the output signal of a sonar detector having a directional characteristic which occurs as the orientation of the detector, and hence its characteristic, is rotated.
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A method of determining the bearing of a source of a sonar signal comprising determining the phase of a cyclic variation of the output signal of a sonar detector having a directional characteristic which occurs as the orientation of the detector, and hence its characteristic, is rotated.
openaire +1 more source