Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Wameedh Riyadh Abdul-Adheem"'
Publikováno v:
International Journal of Electronics and Telecommunications, Vol vol. 68, Iss No 1, Pp 109-114 (2022)
In this paper, the performance of Low-Density Parity-Check (LDPC) codes is improved, which leads to reduce the complexity of hard-decision Bit-Flipping (BF) decoding by utilizing the Artificial Spider Algorithm (ASA). The ASA is used to solve the opt
Externí odkaz:
https://doaj.org/article/a6b2b07e6e4f4696a2df4c466648f9aa
Autor:
Wameedh Riyadh Abdul-Adheem, Ibraheem Kasim Ibraheem, Amjad J. Humaidi, Ahmed Alkhayyat, Rami A. Maher, Ahmed Ibraheem Abdulkareem, Ahmad Taher Azar
Publikováno v:
Ain Shams Engineering Journal, Vol 13, Iss 4, Pp 101656- (2022)
In this work, an n-th order Generalized Tracking Differentiator (GTD) is proposed based on sigmoid function with a continuous structure, including both linear and nonlinear parts, thus increasing the estimation accuracy of the input signal and its de
Externí odkaz:
https://doaj.org/article/2fec441d3d3342e9b8c8f0baa8a28bb3
Autor:
Ahmad Taher Azar, Azher M. Abed, Farah Ayad Abdul-Majeed, Ibrahim A. Hameed, Anwar Ja’afar Mohamad Jawad, Wameedh Riyadh Abdul-Adheem, Ibraheem Kasim Ibraheem, Nashwa Ahmad Kamal
Publikováno v:
Machines, Vol 11, Iss 4, p 470 (2023)
This paper presents a novel extended state observer (ESO) approach for a class of plants with nonlinear dynamics. The proposed observer estimates both the state variables and the total disturbance, which includes both exogenous and endogenous disturb
Externí odkaz:
https://doaj.org/article/3eee03589596442792990945c82bd0ed
Autor:
Ahmad Taher Azar, Drai Ahmed Smait, Sami Muhsen, Moayad Abdullah Jassim, Asaad Abdul Malik Madhloom AL-Salih, Ibrahim A. Hameed, Anwar Ja’afar Mohamad Jawad, Wameedh Riyadh Abdul-Adheem, Vincent Cocquempot, Mouayad A. Sahib, Nashwa Ahmad Kamal, Ibraheem Kasim Ibraheem
Publikováno v:
Applied Sciences, Vol 13, Iss 5, p 3300 (2023)
In this work, a Nonlinear Higher Order Extended State Observer (NHOESO) is presented to replace the Linear Extended State Observer (LESO) used in Conventional Active Disturbance Rejection Control (C-ADRC) solutions. In the NHOESO, the standard LESO i
Externí odkaz:
https://doaj.org/article/895235131b164ff8be5ee81e87dc2185
Autor:
Ibrahim A. Hameed, Luay Hashem Abbud, Jaafar Ahmed Abdulsaheb, Ahmad Taher Azar, Mohanad Mezher, Anwar Ja’afar Mohamad Jawad, Wameedh Riyadh Abdul-Adheem, Ibraheem Kasim Ibraheem, Nashwa Ahmad Kamal
Publikováno v:
Entropy, Vol 25, Iss 3, p 514 (2023)
A disturbance/uncertainty estimation and disturbance rejection technique are proposed in this work and verified on a ground two-wheel differential drive mobile robot (DDMR) in the presence of a mismatched disturbance. The offered scheme is the an imp
Externí odkaz:
https://doaj.org/article/6a2747f529cd45a5bf98e6915ccebc0e
Publikováno v:
Alexandria Engineering Journal, Vol 58, Iss 4, Pp 1145-1156 (2019)
Multivariable systems are broadly found in industrial processes with nonlinearities, uncertainties, and both input and state couplings. The basic idea to deal with such problems is to remove the input couplings, then estimating all other issues in an
Externí odkaz:
https://doaj.org/article/62834c3724fb44e49d0cc49e269b3138
Autor:
Ahmad Taher Azar, Farah Ayad Abdul-Majeed, Hasan Sh. Majdi, Ibrahim A. Hameed, Nashwa Ahmad Kamal, Anwar Jaafar Mohamad Jawad, Ali Hashim Abbas, Wameedh Riyadh Abdul-Adheem, Ibraheem Kasim Ibraheem
Publikováno v:
Mathematics, Vol 10, Iss 13, p 2261 (2022)
Dynamic observers are commonly used in feedback loops to estimate the system’s states from available control inputs and measured outputs. The presence of measurement noise degrades the performance of the observer and consequently degrades the perfo
Externí odkaz:
https://doaj.org/article/41e5d549898c4f13a53656b939bbcc47
Publikováno v:
Measurement + Control, Vol 54 (2021)
Traditional input–output feedback linearization requires full knowledge of system dynamics and assumes no disturbance at the input channel and no system’s uncertainties. In this paper, a model-free active input–output feedback linearization tec
Externí odkaz:
https://doaj.org/article/e4effbff91544797b681bd184e44aa9b
Autor:
Wameedh Riyadh Abdul-Adheem, Ahmed Alkhayyat, Ammar K. Al Mhdawi, Nik Bessis, Ibraheem Kasim Ibraheem, Ahmed Ibraheem Abdulkareem, Amjad J. Humaidi, Arif A. AL-Qassar
Publikováno v:
Entropy, Vol 23, Iss 11, p 1487 (2021)
Multi-Inputs-Multi-Outputs (MIMO) systems are recognized mainly in industrial applications with both input and state couplings, and uncertainties. The essential principle to deal with such difficulties is to eliminate the input couplings, then estima
Externí odkaz:
https://doaj.org/article/c30b5eefc6f94988ab3201547c635b45
Publikováno v:
Cogent Engineering, Vol 6, Iss 1 (2019)
The cantilever vibrator motion system of a carbon nanotube (CNT) is considered the next step in developing cold cathodes for VHF-band nano-antennas. In cases where a nano-antenna is used in noisy environments, this device interferes with other commun
Externí odkaz:
https://doaj.org/article/2beafe6f2be346cfa1b3dc38f792db5e