Delay Doppler

Delay Doppler coordinates are coordinates typically used in a radar technology-inspired approach to measurement.[1][2] When used in wireless communication, the Delay Doppler domain mirrors the geometry of the reflectors comprising the wireless channel, which changes far more slowly than the phase changes experienced in the rapidly varying time-frequency domain.[3][4]

  1. ^ "5.1.5 Delay-Doppler (or SAR) Altimetry – Radar Altimetry Tutorial and Toolbox". Retrieved 2021-05-20.
  2. ^ "IEEE Xplore is temporarily unavailable". s3-us-west-2.amazonaws.com. Retrieved 2021-05-20.
  3. ^ Fish, Alexander; Gurevich, Shamgar; Hadani, Ronny; Sayeed, Akbar M.; Schwartz, Oded (2013-11-01). "Delay-Doppler Channel Estimation in Almost Linear Complexity". IEEE Transactions on Information Theory. 59 (11): 7632–7644. arXiv:1208.4405. doi:10.1109/TIT.2013.2273931. ISSN 0018-9448. S2CID 230975.
  4. ^ Saif Khan Mohammed (2020). "Time-Domain to Delay-Doppler Domain Conversion of OTFS Signals in Very High Mobility Scenarios". arXiv:2006.12413 [cs.IT].