Preamble Design with HFMs for Underwater Acoustic Communications
Authors:
- Mengying XinMXMengying Xin
- Wei LiWLWei Li
- Xin WangXWXin Wang
- Yingen ZhangYZYingen Zhang
- Lijun XuLXLijun Xu
- 1 May 2018
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- p. 1-5
Abstract
Hyperbolic frequency modulation (HFM) is Doppler insensitive. Therefore, HFM has been widely used in underwater acoustic communications as a preamble where wideband Doppler insensitivity is highly required. Based on this, we propose a new waveform named up-down-sweeping HFM (UMD-HFM). It combines an up-sweeping HFM and a down-sweeping HFM and leaves a span which is a little longer than delay spread of channel. UMD-HFM not only preserves the Doppler invariance, but also can be used to estimate the instantaneous Doppler scale for underwater communication. With this simple coding structure, UMD-HFM can also demonstrate a better detection performance.Keywords
This publication has 7 references indexed in Scilit:
- HFM design for timing synchronization in underwater communications systems2017
- Doppler estimation and timing synchronization of underwater acoustic communication based on hyperbolic frequency modulation signal2015
- OFDM for Underwater Acoustic Communications2014
- Parallel Array Bistable Stochastic Resonance System with Independent Input and Its Signal‐to‐Noise Ratio ImprovementMathematical Problems in Engineering, 2014
- Range Bias Modeling for Hyperbolic-Frequency-Modulated Waveforms in Target TrackingIEEE Journal of Oceanic Engineering, 2012
- Sparse Channel Estimation for Multicarrier Underwater Acoustic Communication: From Subspace Methods to Compressed SensingIEEE Transactions on Signal Processing, 2009
- Active sonar detection in shallow water using the Page testIEEE Journal of Oceanic Engineering, 2002