T
Tarig Ballal
Researcher at King Abdullah University of Science and Technology
Publications - 78
Citations - 672
Tarig Ballal is an academic researcher from King Abdullah University of Science and Technology. The author has contributed to research in topics: Estimator & Computer science. The author has an hindex of 10, co-authored 67 publications receiving 418 citations. Previous affiliations of Tarig Ballal include University College Dublin.
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Journal ArticleDOI
High-Accuracy Reference-Free Ultrasonic Location Estimation
TL;DR: A novel reference-free ultrasonic indoor location system that provides 3-D accuracy better than 9.5 cm in 99% of cases, an 80% accuracy improvement over the conventional AoA-only method.
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Air Writing via Receiver Array-Based Ultrasonic Source Localization
TL;DR: The proposed air-writing system, which combines the proposed DOA estimation and text recognition algorithms, achieves a letter classification accuracy of 96.31% and is compared with four training-free classifiers and two machine learning classifiers to demonstrate the efficiency of the proposed system.
Journal ArticleDOI
Localization and Tracking Control Using Hybrid Acoustic–Optical Communication for Autonomous Underwater Vehicles
Ding Zhang,Ibrahima N'Doye,Tarig Ballal,Tareq Y. Al-Naffouri,Mohamed-Slim Alouini,Taous-Meriem Laleg-Kirati +5 more
TL;DR: An error-based adaptive model predictive control (MPC) and a proportional–derivative (PD) controller incorporating a real-time acoustic localization system to guide the AUV toward the sensor node mounted on the surface ship.
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Phase-Difference Ambiguity Resolution for a Single-Frequency Signal
Tarig Ballal,Chris J. Bleakley +1 more
TL;DR: It is shown that a collinear receiver triplet with a specific configuration combined with a proposed algorithm can be utilized for phase-difference disambiguation and performance is found to exhibit an SNR threshold effect that depends on the emitter location and the sensor configuration.
Journal ArticleDOI
Phase-Difference Ambiguity Resolution for a Single-Frequency Signal in the Near-Field Using a Receiver Triplet
Tarig Ballal,Chris J. Bleakley +1 more
TL;DR: It is mathematically prove that, in a noiseless case, the true phase-difference can unambiguously be estimated utilizing a third collinear sensor, provided that the absolute difference between the two smaller inter-sensor spacings is less than lambda/2.