Work

Doppler compensation and sparse channel estimation method based on CZT in underwater acoustic OFDMcommunications

Year: 2025

Type: conference-paper

Abstract: The Doppler-delay double-spreading problem in underwater acoustic channels brought great challenges to applying orthogonal frequency division multiplexing (OFDM) technology. To address the issues of Doppler compensation and channel estimation in OFDM, we proposed a Doppler compensation method based on the Chirp-Z transform (CZT) and an orthogonal matching pursuit (OMP) channel estimation method based on the Chirp-Z transform. Simulation results demonstrate that these methods improve performance and reduce complexity compared to traditional approaches.

Source: Journal of Physics Conference Series

DOI: 10.1088/1742-6596/2991/1/012024

Author: Zheng Wang

Institution: Hangzhou Institute of Applied Acoustics

Language: English

Topic: Underwater Vehicles and Communication Systems

Subfield: Ocean Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: diamond

OpenAlex ID: W4409294783

FWCI: 2.91

Cites: 10

Cited by: 1

Related to: 10