Doppler Scale Estimation for Underwater Acoustic Communications Using Zadoff-Chu Sequences

被引：0
作者：
Jiang, Shuo [1 ]
Wang, Yiyin [1 ]
Yu, Wenbin [1 ]
机构：
[1] Shanghai Jiao Tong Univ, Dept Automat, Minist Educ China, Key Lab Syst Control & Informat Proc, Shanghai 200240, Peoples R China
来源：
2019 11TH INTERNATIONAL CONFERENCE ON WIRELESS COMMUNICATIONS AND SIGNAL PROCESSING (WCSP) | 2019年
基金：
中国国家自然科学基金;
关键词：
Doppler scale estimation; ZC sequence; shift-multiplication; SML channel; SPARSE CHANNEL ESTIMATION; SYNCHRONIZATION; PARAMETERS;
D O I：
10.1109/wcsp.2019.8927893
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
This paper introduces a novel way to accurately estimate Doppler scaling factors in multi-scale multi-lag (MSML) channels for underwater acoustic communications using a Zadoff-Chu (ZC) sequence. Taking advantages of the ZC sequence, the Doppler scale estimation is successfully transformed into a frequency analysis problem. An iterative approach is designed to calculate the Doppler scaling factor of each path in the MSML channel. Numerical simulations are carried out to compare the proposed method with the fractional Fourier transform (FrFT)-based one. The results show that the proposed method has a better performance than the latter one.
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页数：6
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