dr. G. Joseph
Signal Processing Systems (SPS), Department of Microelectronics
Expertise: Compressive Sensing, Statistical signal processing, Automotive sensing, Sparse Control, Communication
Themes: Autonomous sensor systems, XG - Next Generation Sensing and CommunicationBiography
Geethu Joseph received the B. Tech. degree in electronics and communication engineering from the National Institute of Technology, Calicut, India, in 2011, and the M. E. degree in signal processing and the Ph.D. degree in electrical communication engineering (ECE) from the Indian Institute of Science (IISc), Bangalore, in 2014 and 2019, respectively. She was a Postdoctoral Fellow with the Department of Electrical Engineering and Computer Science, Syracuse University, NY, USA, from 2019 to 2021. She is currently an assistant professor at TU Delft.
Dr. Joseph was awarded the 2022 IEEE SPS best PhD dissertation award and the 2020 SPCOM best doctoral dissertation award. She is also a recipient of the Prof. I. S. N. Murthy Medal in 2014 for being the best M. E. (signal processing) student in the ECE dept., IISc, and the Seshagiri Kaikini Medal for the best Ph.D. thesis of the ECE dept., at IISc for the year 2019-'20
Dr. Joseph holds 50+ peer-reviewed publications in the fields of signal processing, communications, and control theory. She is an associate editor of the IEEE Sensors Journal and an active reviewer for major journals and conferences in signal processing, communications, and control theory. Her research interests include statistical signal processing, network control, and machine learning.
EE3S1 Signal Processing
Statistical and Digital Signal Processing
EE4740 Sparse signal processing
Data compression and its connections to information theory and compressed sensing
EE4C03 Statistical digital signal processing
A second course on digital signal processing: random signals, covariances, linear prediction, spectrum estimation, optimal filtering, Wiener and Kalman filters, LMS and RLS algorithm
Education history
EE2S31 Signal processing
(not running) Digital signal processing; stochastic processes
Atmospheric Turbulence Informed Machine Learning for Laser Satellite Communications
Physics-informed machine learning algorithms to formulate the optical link performance map
Signal processing for environment-aware radar
In future, cars will exploit multiple radars towards autonomous driving. Before this becomes a reality, several challenges will have to be solved.
- Sparse Millimeter Wave Channel Estimation Under Partially Coherent Phase Noise
Quan, Chen; Yi, Weijia; Myers, Nitin Jonathan; Joseph, Geethu;
IEEE Transactions on Wireless Communications,
2026. DOI: 10.1109/TWC.2026.3684356
document - Energy-Efficient Sequential Estimation Via Sensor Ordering
Quan, Chen; Joseph, Geethu; Myers, Nitin Jonathan;
IEEE Transactions on Signal and Information Processing over Networks,
pp. 1-13, 2026. DOI: 10.1109/TSIPN.2026.3685830
document - Camera-Aided Binary Prior Support-Informed Occupancy Grid Mapping
Zhai, Peiyuan; Joseph, Geethu; Jonathan Myers, Nitin; Pandharipande, Ashish;
IEEE Sensors Journal,
Volume 26, Issue 3, pp. 4340-4348, 2026. DOI: 10.1109/JSEN.2025.3642255
document - Channel Access Strategies for Control–Communication Co-Designed Networks
Ghatak, Gourab; Joseph, Geethu; Quan, Chen;
IEEE Transactions on Control of Network Systems,
Volume 13, Issue 1, pp. 117-129, 2026. DOI: 10.1109/TCNS.2025.3621024
document - Bayesian Algorithms for Kronecker-structured Sparse Vector Recovery With Application to IRS-MIMO Channel Estimation
Yanbin He; Geethu Joseph;
IEEE Transactions on Signal Processing,
pp. 142-157, 2025. DOI: 10.1109/TSP.2024.3416543
document - Low-Resolution Compressed Sensing and Beyond for Communications and Sensing: Trends and Opportunities
Geethu Joseph; et al.;
Elsevier Signal Processing,
2025. - Efficient Off-Grid Bayesian Parameter Estimation for Kronecker-Structured Signals
Yanbin He; G. Joseph;
IEEE Transactions on Signal Processing,
Volume 73, pp. 2616-2630, 2025. DOI: https://doi.org/10.1109/TSP.2025.3583895
Abstract: ...
This work studies the problem of jointly estimating unknown parameters from Kronecker-structured multidimensional signals, which arises in applications like intelligent reflecting surface (IRS)-aided channel estimation. Exploiting the Kronecker structure, we decompose the estimation problem into smaller, independent subproblems across each dimension. Each subproblem is posed as a sparse recovery problem using basis expansion and solved using a novel off-grid sparse Bayesian learning (SBL)-based algorithm. Additionally, we derive probabilistic error bounds for the decomposition, quantify its denoising effect, and provide convergence analysis for off-grid SBL. Our simulations show that applying the algorithm to IRS-aided channel estimation improves accuracy and runtime compared to state-of-the-art methods through the low-complexity and denoising benefits of the decomposition step and the high-resolution estimation capabilities of off-grid SBL.
document - Accelerated Pattern-Coupled Sparse Bayesian Learning for Automotive Occupancy Mapping
Harraway, Frank; Zhai, Peiyuan; Joseph, Geethu; Pandharipande, Ashish;
IEEE Sensors Journal,
Volume 25, Issue 22, pp. 41801-41810, 2025. DOI: 10.1109/JSEN.2025.3617133
document - State and Sparse Input Estimation in Linear Dynamical Systems Using Low-Dimensional Measurements
Chakraborty, Rupam Kalyan; Joseph, Geethu; Murthy, Chandra R.;
IEEE Open Journal of Control Systems,
Volume 4, pp. 581-596, 2025. DOI: 10.1109/OJCSYS.2025.3624615
document - Spatial Sparsity-Aware Radar-LiDAR Fusion for Occupancy Grid Mapping in Automotive Driving
Zhai, Peiyuan; Joseph, Geethu; Myers, Nitin Jonathan; Önen, Çağan; Pandharipande, Ashish;
IEEE Sensors Journal,
Volume 25, Issue 17, pp. 33328-33338, 2025. DOI: 10.1109/JSEN.2025.3592023
document - Noise-Resilient Unlimited Sampling and Recovery of Sparse Signals
Joseph, Geethu;
In 2025 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP),
pp. 1-5, 2025. DOI: 10.1109/ICASSP49660.2025.10888741
document - On the Restricted Isometry Property of Kronecker-structured Matrices
He, Yanbin; Joseph, Geethu;
In 2025 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP),
pp. 1-5, 2025. DOI: 10.1109/ICASSP49660.2025.10888132 - Kronecker-structured Sparse Vector Recovery with Application to IRS-MIMO Channel Estimation
He, Yanbin; Joseph, Geethu;
In 2025 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP),
pp. 1-5, 2025. DOI: 10.1109/ICASSP49660.2025.10890014
document - Situation-aware Space-time Waveform Design for Automotive MIMO Radars
Focante, Edoardo; Myers, Nitin Jonathan; Joseph, Geethu; Pandharipande, Ashish;
In 2025 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP),
pp. 1-5, 2025. DOI: 10.1109/ICASSP49660.2025.10890749
document - An Energy-Efficient Ordered Transmission-based Sequential Estimation
Quan, Chen; Joseph, Geethu; Myers, Nitin Jonathan;
In 2025 IEEE 101st Vehicular Technology Conference (VTC2025-Spring),
pp. 1-6, 2025. DOI: 10.1109/VTC2025-Spring65109.2025.11174545} url = {https://sp - A Hierarchical View of Structured Sparsity in Kronecker Compressive Sensing
Yanbin He; Geethu Joseph;
In 2025 33rd European Signal Processing Conference (EUSIPCO),
Sept. 2025. DOI: 10.23919/EUSIPCO63237.2025.11226345
document - Computationally-Efficient Sparsity-Aware Occupancy Grid Mapping for Automotive Driving
Harraway, Frank; Zhai, Peiyuan; Pandharipande, Ashish; Joseph, Geethu;
In 2025 IEEE SENSORS,
pp. 1-4, 2025. DOI: 10.1109/SENSORS59705.2025.11331194
document - Adaptive Dithering for Improved Dynamic Range in Mixed-Resolution ADC Digital Radars
Shaikh, Mohammed Aasim; Joseph, Geethu; Pandharipande, Ashish; Myers, Nitin Jonathan;
In 2025 IEEE Radar Conference (RadarConf25),
pp. 1242-1247, 2025. DOI: 10.1109/RadarConf2559087.2025.11205063
document - Non-Line-Of-Sight Localization in Automotive Radar Via Intelligent Reflecting Surfaces
Chakraborty, Rupam Kalyan; Joseph, Geethu; Myers, Nitin Jonathan; Pandharipande, Ashish;
In 2025 IEEE 26th International Workshop on Signal Processing and Artificial Intelligence for Wireless Communications (SPAWC),
pp. 1-5, 2025. DOI: 10.1109/SPAWC66079.2025.11143303
document - Convergence of Expectation-Maximization Algorithm with Mixed-Integer Optimization
Geethu Joseph;
IEEE Signal Processing Letters,
2024. - Anomaly Detection via Learning-Based Sequential Controlled Sensing
Geethu Joseph; Chen Zhong; M. Cenk Gursoy; Senem Velipasalar; Pramod K. Varshney;
IEEE Sensors,
2024. - Occupancy Grid Mapping for Automotive Driving Exploiting Clustered Sparsity
Çağan Önen; Ashish Pandharipande; Geethu Joseph; Nitin Jonathan Myers;
IEEE Sensors,
2024. - Adaptive Beamforming for Situation-aware Automotive Radars Under Uncertain Side Information
Edoardo Focante; Nitin Jonathan Myers; Geethu Joseph; Ashish Pandharipande;
IEEE Transactions on Signal Processing,
2024. - Pointwise-Sparse Actuator Scheduling for Linear Systems with Controllability Guarantee
Luca Ballotta; Geethu Joseph; Irawati Rahul Thete;
IEEE Control Systems Letters,
2024. - Comprehensive MPSP for Fast Optimal Control: Algorithm Development and Convergence Analysis
Prem Kumar; Geethu Joseph; Chandra R. Murthy; Radhakant Padhi;
Transactions of the Indian National Academy of Engineering,
2024. - Sparse Actuator Control of Discrete-Time Linear Dynamical Systems
Geethu Joseph;
Now Publishers, Inc., , 2024. DOI: 10.1561/2600000033
document - Sparsity-Constrained Linear Dynamical Systems
Geethu Joseph; Chandra R. Murthy;
Springer Tracts in Electrical and Electronics Engineering, Springer, Singapore, , 2024. DOI: 10.1007/978-981-97-7090-8 - Situation-aware Adaptive Transmit Beamforming for Automotive Radars
Edoardo Focante; Nitin Jonathan Myers; Geethu Joseph; Ashish Pandharipande;
In ICASSP,
2024. - Sparse Millimeter Wave Channel Estimation From Partially Coherent Measurements
Weijia Yi; Nitin Jonathan Myers; Geethu Joseph;
In ICC,
2024. - Bayesian Learning-based Kalman Smoothing for Linear Dynamical Systems With Unknown Sparse Inputs
Rupam Kalyan Chakraborty; Geethu Joseph; Chandra R. Murthy;
In ICASSP,
2024. - Minimal Input Structural Modifications for Strongly Structural Controllability
Geethu Joseph; Shana Moothedath; Jiabin Lin;
In CDC,
2024. - Transmit Beamforming for Phased Array Radars Under Uncertain Occupancy Grid Map Information
Edoardo Focante; Nitin Jonathan Myers; Geethu Joseph; Ashish Pandharipande;
In IEEE Sensors,
2024. - Sparsity-Aware Occupancy Grid Mapping for Automotive Driving Using Radar-LiDAR Fusion
Peiyuan Zhai; Geethu Joseph; Nitin Jonathan Myers; Çağan Önen; Ashish Pandharipande;
In IEEE Sensors,
2024. - Transmit Beamforming for Phased Array Radars Under Uncertain Occupancy Grid Map Information
Edoardo Focante; Nitin Jonathan Myers; Geethu Joseph; Ashish Pandharipande;
In IEEE Sensors,
2024. - Poisson Networked Control Systems: Statistical Analysis and Online Learning for Channel Access
Gourab Ghatak; Geethu Joseph; Chen Quan;
In WiOpt workshop RAWNET,
2024. - Sparse Actuator Scheduling for Discrete-Time Linear Dynamical Systems
Krishna Praveen V. S. Kondapi; Chandrasekhar Sriram; Geethu Joseph; Chandra R. Murthy;
In Indian Control Conference,
2024. - Stabilizability of Linear Dynamical Systems Using Sparse Control Inputs
Chandrasekhar Sriram; Geethu Joseph; Chandra R. Murthy;
IEEE Transactions on Automatic Control,
2023. DOI: 10.1109/TAC.2022.3217102 - Stabilizability of Linear Dynamical Systems Using Sparse Control Inputs
Chandrasekhar Sriram; Geethu Joseph; Chandra R. Murthy;
IEEE Transactions on Automatic Control,
2023. DOI: 10.1109/TAC.2022.3217102 - Output Controllability of a Linear Dynamical System with Sparse Controls
Geethu Joseph;
IEEE Transactions on Control of Network Systems,
2023. DOI: 10.1109/TCNS.2022.3188484 - Scalable and Decentralized Algorithms for Anomaly Detection via Learning-Based Controlled Sensing
Geethu Joseph; Chen Zhong; M. Cenk Gursoy; Senem Velipasalar; Pramod K. Varshney;
IEEE Transactions on Signal and Information Processing over Networks,
2023. - Occupancy Grid Mapping for Automotive Driving Exploiting Clustered Sparsity
Çağan Önen; Ashish Pandharipande; Geethu Joseph; Nitin Jonathan Myers;
IEEE Sensors Journal,
2023. - Structure-aware Sparse Bayesian Learning-based Channel Estimation for Intelligent Reflecting Surface-aided MIMO
Yanbin He; Geethu Joseph;
In ICASSP,
2023. - LiDAR-Based Occupancy Grid Map Estimation Exploiting Spatial Sparsity
Çağan Önen; Ashish Pandharipande; Geethu Joseph; Nitin Jonathan Myers;
In IEEE Sensors,
2023. - Output Controllability of a Linear Dynamical System with Sparse Controls
Geethu Joseph;
IEEE Transactions on Control of Network Systems,
2022. DOI: 10.1109/TCNS.2022.3188484 - Sparsity-aware Bayesian inference and its applications
Joseph, Geethu; Khanna, Saurabh; Murthy, Chandra R; Prasad, Ranjitha; Thoota, Sai Subramanyam;
In Handbook of Statistics,
Elsevier BV, 2022. - State Estimation of Linear Systems With Sparse Inputs and Markov-modulated Missing Outputs
Geethu Joseph; Pramod K. Varshney;
In European Signal Processing Conference,
2022. - Near-field Focusing Using Phased Arrays With Dynamic Polarization Control
Nitih Jonathan Myers; Yanki Aslan; Geethu Joseph;
In European Signal Processing Conference,
2022. - Learning Distributions Generated by Single-Layer ReLU Networks in the Presence of Arbitrary Outliers
Saikiran Bulusu; Geethu Joseph; M. Cenk Gursoy; Pramod K. Varshney;
In Neurips,
2022. (S. Bulusu and G. Joseph have equal contribution). - Sensorized nanoliter reactor chamber for DNA multiplication
V.P. Iordanov; B.P. Iliev; V. Joseph; J. Bastemeijer; P.M. Sarro; I.T. Young; G. van DedemWK; M.J. Vellekoop;
In D. Rocha; P.M. Sarro; M.J. Vellekoop (Ed.), Proceedings of IEEE Sensors, 2004,
IEEE, Piscataway, pp. 229-232, 2004. niet eerder opgevoerd 50/50 EI/ECTM.
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Last updated: 9 Feb 2026
Geethu Joseph
PhD students
MSc students
MSc project proposals
- State-Space Modeling of Collective Neural Activity
- Tracking Sparse Changes in Dynamic Networks via Graph Signal Processing
- Sparsity-aware occupancy mapping for automotive applications
- Optimal Control of Linear Dynamical Systems with Sparse Inputs
- Spatial Wideband Effects in mmWave Multi-User Communication Systems
- Trust Modeling from Sparse Signals: A State Space Approach for Human-Robot Interaction