Zobrazeno 1 - 10
of 1 311
pro vyhledávání: '"MUSIC algorithm"'
Publikováno v:
Hangkong bingqi, Vol 31, Iss 3, Pp 78-87 (2024)
In order to solve the problem of mismatch caused by the diversity of array elements and the placement of array in three dimensions, a hybrid three-dimensional polarization sensitive array direction finding model is proposed for a hybrid three-dimensi
Externí odkaz:
https://doaj.org/article/1c7a0526d3e540fc8d7a18a7be1b74d1
Publikováno v:
IEEE Access, Vol 12, Pp 80283-80299 (2024)
This paper aims to introduce a new strategy for the detection of faulty elements in phased array antennas. The approach takes advantage on the possibility in phased array to introduce the steering diversity. Accordingly, by collecting the radiated fi
Externí odkaz:
https://doaj.org/article/54834081489e4c9d9e9ae2f20237951f
Autor:
Rabah Abduljabbar Jasem
Publikováno v:
Al-Iraqia Journal for Scientific Engineering Research, Vol 3, Iss 2 (2024)
This work examines the efficiency of the model known as “Coupled Voltages to Uncoupled Currents” for representing the mutual coupling phenomenon between the elements of a receiving antenna array. This model postulates the relationship between the
Externí odkaz:
https://doaj.org/article/56b52445eb2a4d39b77fb6c3e57478c3
Publikováno v:
ICT Express, Vol 9, Iss 5, Pp 854-859 (2023)
Perturbation analysis of direction of arrival (DOA) estimation has been studied mostly on one-dimensional arrays rather than planar arrays, which remains room for exploration. For uniform circular arrays with various model errors, we establish the co
Externí odkaz:
https://doaj.org/article/ce65930127134797abd4905ab3a5720f
Autor:
Yung-Yi Wang, Shih-Jen Yang
Publikováno v:
Mathematics, Vol 12, Iss 16, p 2568 (2024)
We present a subspace-based polynomial rooting algorithm to estimate the frequency bias (FB) of generalized frequency division multiplexing (GFDM) systems employing null subcarriers and repetitive sub-symbols. The estimation process is classified int
Externí odkaz:
https://doaj.org/article/941f8f6830e24df98b1088107e04f117
Publikováno v:
Fractal and Fractional, Vol 8, Iss 7, p 417 (2024)
This work investigates a fractional-order multi-wing chaotic system for detecting weak signals. The influence of the order of fractional calculus on chaotic systems’ dynamical behavior is examined using phase diagrams, bifurcation diagrams, and SE
Externí odkaz:
https://doaj.org/article/75279041d3104609afddc3bcc0e33463
Publikováno v:
IET Radar, Sonar & Navigation, Vol 17, Iss 9, Pp 1391-1404 (2023)
Abstract Polarimetric Airborne Scientific INstrument, mark 2 (PASIN2) is a 150 MHz coherent pulsed radar with the purpose of deep ice sounding for bedrock, subglacial channels and ice‐water interface detection in Antarctica. It is designed and oper
Externí odkaz:
https://doaj.org/article/309508bd00a248dc99535338e286b3a8
Autor:
Rabah Abduljabbar Jasem
Publikováno v:
Journal of Engineering, Vol 30, Iss 01 (2024)
The improvement in Direction of Arrival (DOA) estimation when the received signals impinge on Active-Parasitic Antenna (APA) arrays will be studied in this work. An APA array consists of several active antennas; others are parasitic antennas. The res
Externí odkaz:
https://doaj.org/article/d6ab7d59df5143828f29c81eda72f26c
Publikováno v:
Sensors, Vol 24, Iss 9, p 2789 (2024)
UAV communications have seen a rapid rise in the last few years. The drone class of UAV has particularly become more widespread around the world, and illicit behavior using drones has become a problem. Therefore, localization, tracking, and even taki
Externí odkaz:
https://doaj.org/article/2801bf23c5c0453f9e41c47583eaa2f4
Publikováno v:
Sensors, Vol 24, Iss 9, p 2887 (2024)
In this contribution, a wearable microwave imaging system for real-time monitoring of brain stroke in the post-acute stage is described and validated. The system exploits multistatic/multifrequency (only 50 frequency samples) data collected via a low
Externí odkaz:
https://doaj.org/article/bed9bc49678443078691841784070be1