Abstract
The recently proposed orthogonal time frequency space (OTFS) modulation multiplexes data symbols in the delay-Doppler (DD) domain. Since the range and velocity, which can be derived from the delay and Doppler shifts, are the parameters of interest for radar sensing, it is natural to consider implementing DD signal processing for radar sensing. In this paper, we investigate the potential connections between the OTFS and DD domain radar signal processing. Our analysis shows that the range-Doppler matrix computing process in radar sensing is exactly the demodulation of OTFS with a rectangular pulse shaping filter. Furthermore, we propose a two-dimensional (2D) correlation-based algorithm to estimate the fractional delay and Doppler parameters for radar sensing. Simulation results show that the proposed algorithm can efficiently obtain the delay and Doppler shifts associated with multiple targets.
| Original language | English |
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| Title of host publication | ICC 2023: IEEE International Conference on Communications: Sustainable Communications for Renaissance |
| Editors | Michele ZORZI, Meixia TAO, Walid SAAD |
| Publisher | IEEE |
| Pages | 6429-6434 |
| Number of pages | 6 |
| ISBN (Electronic) | 9781538674628 |
| DOIs | |
| Publication status | Published - 2023 |
| Externally published | Yes |
| Event | 2023 IEEE International Conference on Communications, ICC 2023 - Rome, Italy Duration: 28 May 2023 → 1 Jun 2023 |
Publication series
| Name | IEEE International Conference on Communications |
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| Volume | 2023-May |
| ISSN (Print) | 1550-3607 |
Conference
| Conference | 2023 IEEE International Conference on Communications, ICC 2023 |
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| Country/Territory | Italy |
| City | Rome |
| Period | 28/05/23 → 1/06/23 |
Bibliographical note
Publisher Copyright:© 2023 IEEE.
Keywords
- delay-Doppler (DD) domain
- Fractional delay and Doppler
- OTFS
- Radar sensing