Channel and Radar Parameter Estimation with Fractional Delay-Doppler Using OTFS

• Published in: IEEE communications letters Vol. 27; no. 5; p. 1
• Main Authors: Muppaneni, Sai Pradeep, Mattu, Sandesh Rao, Chockalingam, A.
• Format: Journal Article
• Language: English
• Published: New York IEEE 01.05.2023; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Algorithms; Channel estimation; Doppler effect; Estimation; fractional delay-Doppler; inter-path interference; OTFS; Parameter estimation; radar parameter estimation; Receivers; Sensors; Symbols; Transmitters; Waveforms

Orthogonal time frequency space (OTFS) waveform is suited for both communication as well as radar sensing. In this paper, we propose an algorithm for efficient channel estimation at the receiver and range/velocity estimation at the transmitter using OTFS. The algorithm processes received pilot frame...