Tarig Ballal Khidir Ahmed
- Research Scientist, Electrical and Computer Engineering
image processing acoustic signal detection Digital signal processing low complexity systems Low sampling Ultra-wideband communication UWB channel impulse response estimation. Acoustic sensing and communications Sonars and radars. Movement detection and tracking using RF and acoustic waves. Respiration detection and tracking. Robust estimation and regularization Experimentation and testing.
Research Scientist Laboratory for Nanomedicine, Computational Bioscience Research Center King Abdullah University of Science and Technology | KAUST
Research Interests
- Digital Signal Processing & algorithms.
- Low sampling & low complexity systems.
- Image Processing.
- Ultra-wideband (UWB) sensing and communications.
- UWB channel impulse response estimation.
- Acoustic sensing and communications.
- Sonars and radars.
- Movement detection and tracking using RF and acoustic waves.
- Respiration detection and tracking.
- Robust estimation and regularization.
- Experimentation and testing.
Qualifications
Education
- Doctor of Philosophy (Ph.D.)
- Computer Science, University College Dublin, Ireland, 2011
- Master of Engineering (MEng)
- Telecommunications, Blekinge Institute of Technology, Sweden, 2005
- Bachelor of Engineering (B.Eng.)
- Electrical Engineering, University of Khartoum, Sudan, 2001
- Arabic
- Native or bilingual proficiency
- English
- Professional working proficiency
Languages
Selected Publications
- Wang, L. ., Zheng, P. ., Liu, X. ., Ballal, T. ., & Al-Naffouri, T. Y. (2024). Beamforming Design and Performance Evaluation for RIS-Aided Localization Using LEO Satellite Signals. ICASSP 2024 - 2024 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP). Presented at the. IEEE.
- Zheng, P. ., Ballal, T. ., Chen, H. ., Wymeersch, H. ., & Al-Naffouri, T. Y. (2023). Coverage Analysis of Joint Localization and Communication in THz Systems With 3D Arrays.
- Ahmed, M. ., Ballal, T. ., Liu, X. ., & Al-Naffouri, T. Y. (2023). Multipath Detection and Mitigation from GNSS Observations Using Antenna Arrays. IEEE ION Position, Location and Navigation Symposium (PLANS). Presented at the. Monterey, CA, USA: IEEE.
- Zheng, P. ., Chen, H. ., Ballal, T. ., Wymeersch, H. ., & Al-Naffouri, T. Y. (2023). Misspecified Cramér-Rao Bound of RIS-Aided Localization Under Geometry Mismatch. ICASSP 2023 - 2023 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP). Presented at the. Rhodes Island, Greece: IEEE.
- Ma, X. ., Kammoun, A. ., & Ballal, T. . (2023). Asymptotic Performance Analysis of the Regularized Least Squares Precoding with Restricted Transmit Power in Multi-User Massive MIMO. 2023 31st European Signal Processing Conference (EUSIPCO). Presented at the. Helsinki, Finland: IEEE.
- Zheng, P. ., Chen, H. ., Ballal, T. ., Wymeersch, H. ., & Al-Naffouri, T. Y. (2023). Misspecified Cramér-Rao Bound of RIS-Aided Localization Under Geometry Mismatch. ICASSP 2023 - 2023 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP). Presented at the. Rhodes Island, Greece: IEEE.
- Zheng, P. ., Chen, H. ., Ballal, T. ., Valkama, M. ., Wymeersch, H. ., & Al-Naffouri, T. Y. (2023). JrCUP: Joint RIS Calibration and User Positioning for 6G Wireless Systems.
- Zheng, P. ., Chen, H. ., Ballal, T. ., Valkama, M. ., Wymeersch, H. ., & Al-Naffouri, T. Y. (2023). JrCUP: Joint RIS Calibration and User Positioning for 6G Wireless Systems.
- Chen, H. ., Ballal, T. ., Alouini, M.-S. ., & Al-Naffouri, T. Y. (2020). A Joint TDOA-PDOA Localization Approach Using Particle Swarm Optimization. IEEE Wireless Communications Letters ( Volume: 9, Issue: 8, August 2020).
- Zheng, P. ., Ballal, T. ., Chen, H. ., Wymeersch, H. ., & Al-Naffouri, T. Y. (2023). Coverage Analysis of Joint Localization and Communication in THz Systems With 3D Arrays.
- Zheng, P. ., Ballal, T. ., Chen, H. ., Wymeersch, H. ., & Al-Naffouri, T. Y. (2023). Coverage Analysis of Joint Localization and Communication in THz Systems With 3D Arrays.
- Liu, X. ., Ballal, T. ., Ahmed, M. ., & Al-Naffouri, T. Y. (2022). A GNSS Attitude Determination Algorithm Using Optimization Techniques on Riemannian Manifolds,. 35th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2022). Presented at the. Hyatt Regency Denver Denver, Colorado: ION.
- Douik, A. ., Liu, X. ., Ballal, T. ., & Al-Naffouri, T. Y. (2019). Precise 3-D GNSS Attitude Determination Based on Riemannian Manifold Optimization Algorithms. IEEE Transactions on Signal Processing ( Volume: 68).
- Ballal, T. ., Suliman, M. ., & Al-Naffouri, T. Y. (2017). Bounded Perturbation Regularization for Linear Least Squares Estimation. IEEE Access ( Volume: 5).
- Ballal, T. ., & Al-Naffouri, T. Y. (2014). Low-Sampling-Rate Ultra-Wideband Channel Estimation Using Equivalent-Time Sampling. IEEE Transactions on Signal Processing ( Volume: 62, Issue: 18, September 2014).