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2D Sinc Interpolation-Based Fractional Delay and Doppler Estimation Using Time and Frequency Shifted Gaussian Pulses
Published 8 Dec 2023 in cs.IT, eess.SP, and math.IT | (2312.04969v1)
Abstract: An accurate delay and Doppler estimation method for a radar system using time and frequency-shifted pulses with pseudo-random numbers is proposed. The ambiguity function of the transmitted signal has a strong peak at the origin and is close to zero if delay and Doppler are more than the inverses of the bandwidth and time-width. A two-dimensional (2D) sinc function gives a good approximation of the ambiguity function around the origin, by which fractional delay and Doppler are accurately estimated.
- F. Liu, C. Masouros, A. P. Petropulu, H. Griffiths, and L. Hanzo, “Joint radar and communication design: Applications, state-of-the-art, and the road ahead,” IEEE Trans. Commun., vol. 68, no. 6, pp. 3834–3862, 2020.
- F. Liu, L. Zhou, C. Masouros, A. Li, W. Luo, and A. Petropulu, “Toward dual-functional radar-communication systems: Optimal waveform design,” IEEE Trans. Signal Processing, vol. 66, no. 16, pp. 4264–4279, 2018.
- J. A. Zhang, M. L. Rahman, K. Wu, X. Huang, Y. J. Guo, S. Chen, and J. Yuan, “Enabling joint communication and radar sensing in mobile networks—a survey,” IEEE Communications Surveys & Tutorials, vol. 24, no. 1, pp. 306–345, 2022.
- T. Kohda, Y. Jitsumatsu, K. Fujino, and K. Aihara, “Frequency division (FD)-based CDMA system which permits frequency offset,” in Proc. 2010 Int. Symp. Spread Spectrum Techniques and Applications, Taichung, Taiwan, Oct. 2010, pp. 61–66.
- T. Kohda, Y. Jitsumatsu, and K. Aihara, “Gabor division/spread spectrum system is separable in time and frequency synchronization,” in Proc. Veh. Technology Conf. 2013 Fall, 2013.
- ——, “Separability of time-frequency synchronization,” in Proc. Int. Radar Symp. 2013, Jun. 2013, pp. 964–969.
- Y. Jitsumatsu, T. Kohda, and K. Aihara, “Delay-Doppler space division-based multiple-access solves multiple-target detection,” in Multiple Access Communcations. Springer, Dec. 2013, vol. LNCS 8310, pp. 39–53.
- R. Hadani, S. Rakib, M. Tsatsanis, A. Monk, A. J. Goldsmith, A. F. Molisch, and R. Calderbank, “Orthogonal time frequency space modulation,” in 2017 IEEE Wireless Communications and Networking Conference (WCNC). IEEE, 2017, pp. 1–6.
- S. K. Mohammed, R. Hadani, A. Chockalingam, and R. Calderbank, “OTFS—a mathematical foundation for communication and radar sensing in the delay-Doppler domain,” IEEE BITS the Information Theory Magazine, vol. 2, no. 2, pp. 36–55, 2022.
- A. Pfadler, T. Szollmann, P. Jung, and S. Stanczak, “Leakage suppression in pulse-shaped OTFS delay-Doppler-pilot channel estimation,” IEEE Wireless Communications Letters, vol. 11, no. 6, pp. 1181–1185, 2022.
- P. Raviteja, K. T. Phan, Y. Hong, and E. Viterbo, “Orthogonal time frequency space (OTFS) modulation based radar system,” in 2019 IEEE Radar Conference (RadarConf), 2019, pp. 1–6.
- K. Zhang, W. Yuan, S. Li, F. Liu, F. Gao, P. Fan, and Y. Cai, “Radar sensing via OTFS signaling: A delay doppler signal processing perspective,” arXiv preprint arXiv:2301.09909, 2023.
- Z. Wei, W. Yuan, S. Li, J. Yuan, and D. W. K. Ng, “Transmitter and receiver window designs for orthogonal time-frequency space modulation,” IEEE Trans. on Commun., vol. 69, no. 4, pp. 2207–2223, 2021.
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