Publications

Journal

• Unlocking Off-the-Grid Sparse Recovery with Unlimited Sensing:Simultaneous Super-Resolution in Time and Amplitude
  Ruiming Guo and Ayush Bhandari
  in IEEE J. Sel. Topics Signal Process., 2025 (to appear).

• Blind Time-of-Flight Imaging: Sparse Deconvolution on the Continuum with Unknown Kernels
  Ruiming Guo and Ayush Bhandari
  in SIAM Journal on Imaging Sciences, 2025.

• Sub-Nyquist USF Spectral Estimation: K Frequencies with 6K+4 Modulo Samples
  Ruiming Guo, Yuliang Zhu, and Ayush Bhandari
  in IEEE Trans. Signal Process., 2024.

• Super-Resolving a Frequency Band
  Ruiming Guo and Thierry Blu
  in IEEE Signal Process. Mag., 2023.

• Vector-FRI Recovery of Multi-Sensor Measurements
  Ruiming Guo, Yongfei Li, Hangfang Zhao, and Thierry Blu
  in IEEE Trans. Signal Process., 2022.

• Robust Sparse Reconstruction of Attenuated Acoustic Field with Unknown Range of Source
  Yongfei Li*, Ruiming Guo*, Thierry Blu, and Hangfang Zhao
  in the Journal of the Acoustical Society of America, 2022.

• Exploring the Geometry of One-Dimensional Signals
  Ruiming Guo and Thierry Blu
  in IEEE Trans. Signal Process., 2021.

• Generic FRI-Based DOA Estimation: A Model-Fitting Method
  Yongfei Li*, Ruiming Guo*, Hangfang Zhao, and Thierry Blu
  in IEEE Trans. Signal Process., 2021.

• FRI Sensing: Retrieving the Trajectory of a Mobile Sensor From Its Temporal Samples
  Ruiming Guo and Thierry Blu
  in IEEE Trans. Signal Process., 2020.

Conference

• Ironing the Modulo Folds: Unlimited Sensing with 100x Bandwidth Expansion
  Yuliang Zhu, Ruiming Guo, and Ayush Bhandari
  in Intl. Conf. on Sampling Theory and Applications (SampTA), Aug. 2025 (Best Paper Award).

• HoD-FP Algorithm for Unlimited Sensing: Where Time Meets Frequency
  Ruiming Guo and Ayush Bhandari
  in IEEE International Workshop on Computational Advances in Multi-Sensor Adaptive Processing (CAMSAP, in press), Dec. 2025.

• USF Spectral Estimation: Prevalence of Gaussian Cramér-Rao Bounds Despite Modulo Folding
  Ruiming Guo and Ayush Bhandari
  in IEEE Statistical Signal Processing Workshop (SSP), June. 2025.

• Spectrum Blind Unlimited Sampling of Multi-Band Signals
  Ruiming Guo and Ayush Bhandari
  in IEEE Intl. Conf. on Acoustics, Speech and Signal Processing (ICASSP). IEEE, April. 2025.

• Multiband Unlimited Sampling: Super-Nyquist or Sub-Nyquist, That is the Question!
  Ruiming Guo, Gal Shtendel and Ayush Bhandari
  in IEEE Intl. Conf. on Acoustics, Speech and Signal Processing (ICASSP). IEEE, April. 2025.

• Event-Driven Prony: Towards Asynchronous Spectral Estimation
  Ruiming Guo, Yuliang Zhu and Ayush Bhandari
  in IEEE Intl. Conf. on Acoustics, Speech and Signal Processing (ICASSP). IEEE, April. 2025.

• ED-FreEst: Event-Driven Frequency Estimation
  Ruiming Guo and Ayush Bhandari
  in European Signal Processing Conference (EUSIPCO). EURASIP, Aug. 2024.

• Bits, Channels, Frequencies and Unlimited Sensing: Pushing the Limits of Sub-Nyquist Prony
  Václav Pavlíček, Ruiming Guo, and Ayush Bhandari
  in European Signal Processing Conference (EUSIPCO). EURASIP, Aug. 2024.

• Super-resolving Single Radar Target with an Exact and Simple Formula
  Qi Dai, Ruiming Guo, and Thierry Blu
  in International Technical Conference on Circuits/Systems, Computers, and Communications. July.2024.

• Frequency Estimation via Sub-Nyquist Unlimited Sampling
  Yuliang Zhu, Ruiming Guo, Peiyu Zhang, and Ayush Bhandari
  in IEEE Intl. Conf. on Acoustics, Speech and Signal Processing (ICASSP). IEEE, Apr. 2024.

• ITER-SIS: Robust Unlimited Sampling Via Iterative Signal Sieving
  Ruiming Guo and Ayush Bhandari
  n IEEE Intl. Conf. on Acoustics, Speech and Signal Processing (ICASSP). IEEE, Jun. 2023.

• Unlimited Sampling of FRI Signals Independent of Sampling Rate
  Ruiming Guo and Ayush Bhandari
  in IEEE Intl. Conf. on Acoustics, Speech and Signal Processing (ICASSP). IEEE, Jun. 2023.

• FRI Sensing: Sampling Images along Unknown Curves
  Ruiming Guo and Thierry Blu
  in IEEE Intl. Conf. on Acoustics, Speech and Signal Processing (ICASSP). IEEE, May 2019.

• CFSNet: Toward a Controllable Feature Space for Image Restoration
  Wei Wang*, Ruiming Guo*, Yapeng Tian, and Wenming Yang
  in Proceedings of the IEEE/CVF International Conference on Computer Vision (ICCV), Oct. 2019.