期刊
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
卷 146, 期 2, 页码 998-1004出版社
ACOUSTICAL SOC AMER AMER INST PHYSICS
DOI: 10.1121/1.5119263
关键词
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资金
- National Key R&D Program of China [2018YFC0308500, 2017YFC0305702]
- National Natural Science Foundation of China [61771152, 61431004, 61601136, 61501134]
- fundamental Research Funds of the Central University, China [HEUCFG201825]
- Key Laboratory of Acoustic Environment, Institute of Acoustics, Chinese Academy of Sciences [SHHJ-KFKT-1801]
- Fund of Acoustics Science and Technology Laboratory, and Innovation Special Zone of National Defense Science and Technology
An optimized Doppler scale factor estimation method based on wavelet de-noising is proposed in this paper to improve the performance of frequency-hopped binary frequency-shift keying mobile underwater acoustic communication. The method is with regard to the Doppler scale factors of multiple symbols as a whole and focuses on the continuous variation overall trends, rather than the association between two adjacent symbols. The proposed method was demonstrated in a shallow water experiment conducted in November 2018 at Songhua River in Heilongjiang, China. Experimental data collected showed a bit error rate less than 10(-4) with a data rate of 65.41 bps at a moving speed of 2.0-6.2 m/s over the horizontal range of 0.68-1.6km.
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