Zobrazeno 1 - 10
of 936
pro vyhledávání: '"uniform linear array"'
Publikováno v:
Defence Technology, Vol 33, Iss , Pp 352-363 (2024)
Uniform linear array (ULA) radars are widely used in the collision-avoidance radar systems of small unmanned aerial vehicles (UAVs). In practice, a ULA’s multi-target direction of arrival (DOA) estimation performance suffers from significant perfor
Externí odkaz:
https://doaj.org/article/8a8d26f4bf4a4795a24b634363675cf6
Publikováno v:
Applied Sciences, Vol 14, Iss 15, p 6588 (2024)
Borehole pulsed eddy-current (PEC) systems based on uniform linear multicoil arrays (ULMAs) perform efficient nondestructive evaluations (NDEs) of metal casings. However, the limited physical space of the borehole restricts the degrees of freedom (Do
Externí odkaz:
https://doaj.org/article/f292966762e84ef2b23cccff80389e39
Publikováno v:
Remote Sensing, Vol 16, Iss 15, p 2792 (2024)
Unlike uniform linear arrays (ULAs), coprime arrays require fewer physical sensors yet provide higher degrees of freedom (DOF) and larger array apertures. However, due to the existence of “holes” in the differential co-array, the target detection
Externí odkaz:
https://doaj.org/article/50b5e548b7834ae09cb5aeff1223b9bb
Publikováno v:
EURASIP Journal on Advances in Signal Processing, Vol 2023, Iss 1, Pp 1-22 (2023)
Abstract This paper concerns direction of arrival (DOA) estimation based on a sparse Bayesian learning (SBL) approach. We address two inherent problems of this class of DOA estimation methods: (i) a predefined dictionary can generate off-grid problem
Externí odkaz:
https://doaj.org/article/153207bde29d456ab681d6adf1ab5bab
Yes
In the equivalent frequency-based model, the antenna array gain is utilised to characterise the frequency response of the beam squint effect generated by the antenna array. This impact is considered for a wide range of uniform linear array (
In the equivalent frequency-based model, the antenna array gain is utilised to characterise the frequency response of the beam squint effect generated by the antenna array. This impact is considered for a wide range of uniform linear array (
Externí odkaz:
http://hdl.handle.net/10454/19579
Autor:
Zvi Aharon Herscovici, Israel Cohen
Publikováno v:
Sensors, Vol 24, Iss 7, p 2179 (2024)
Real-time source localization is crucial for high-end automation and artificial intelligence (AI) products. However, a low signal-to-noise ratio (SNR) and limited processing time can reduce localization accuracy. This work proposes a new architecture
Externí odkaz:
https://doaj.org/article/23f8d5fa5c4141398a74f83c7375fb3a
Publikováno v:
Remote Sensing, Vol 16, Iss 6, p 1027 (2024)
In mixed-field source localization, the physical properties of a sensor array, such as the degrees of freedom (DOFs), aperture, and coupling leakage, directly affect the accuracy of estimating the direction of arrival (DOA). Compared to conventional
Externí odkaz:
https://doaj.org/article/36a9ae71a75244c8b8a36c2eef5c2486
Akademický článek
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Publikováno v:
IEEE Access, Vol 11, Pp 98230-98243 (2023)
In the equivalent frequency-based model, the antenna array gain is utilised to characterise the frequency response of the beam squint effect generated by the antenna array. This impact is considered for a wide range of uniform linear array (ULA) and
Externí odkaz:
https://doaj.org/article/75933b0e3bde486aa8a04f72e97e5f44
Publikováno v:
Iraqi Journal of Information & Communication Technology, Vol 6, Iss 2 (2023)
Millimeter wave (mm-Wave) wireless technology has invaded every aspect of modern life because of its ability to transmit data quickly and securely. This paper presented a square patch antenna at a resonance frequency of 26.2GHz for millimeter wave wi
Externí odkaz:
https://doaj.org/article/78a218c0f3ee4c9ebfa907cea0167640