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	基于声场模型的北极冰下扩频通信性能研究
其他题名	Research on acoustic spread spectrum communication performance based on acoustic model in the Arctic
	刘崇磊; 尹力; 普湛清; 黄海宁
来源期刊	仪器仪表学报
ISSN	0254-3087
出版年	2018
卷号	39 期号:12 页码:255-264
中文摘要	北极冰下具有稳定的正梯度声速结构,导致声波与海冰表面频繁交互,造成声能散射、吸收和衰减,使得冰下声信道具有有限的带宽和时变、衰落的多途结构,对冰下稳健的声信息传输带来了挑战.提出了一种基于声场模型的北极冰下扩频通信技术.使用OASES模型和Bellhop模型预测声场能量的空间分布,充分利用声能的会聚现象,将接收阵列布放在能量会聚区域.利用扩频通信良好的抗多途和抗噪声性能,结合Rake接收和空间分集技术,提高冰下声信息传输的性能.经中国第7次北极科学考察扩频通信实验证明,基于声场模型的扩频通信技术在北极冰下声信息传输中获得了良好的通信性能,且研究成果具有一定的科研和应用价值.
英文摘要	The stable upward refracting sound speed profile existing in the Arctic leads to frequently interactive between sound waves and the surface of ice cover,which consequently causes the problems of scattering,absorption and attenuation of acoustic energy. Those processes make the under-ice sound channel have the limited propagation bandwidth and time-variable shading multipath structure which in turn produce challenges for under-ice acoustic information propagation. This study proposes a method of under-ice spread spectrum technology based on acoustic model in the Arctic. The OASES model and Bellhop model are utilized to predict the spatial distribution of the acoustic energy and the putting the receiving array in the convergence region. The prominent anti-multipath and anti-noise properties of underwater acoustic spread spectrum combined with the Rake receiving technology and spacial diversity can promote the propagation performance of the acoustic information. The experiments in the 7th Chinese National Arctic Research Expedition demonstrate that the technology of spread spectrum communication based on acoustic model has the favorable communication performance. Experimental results of this study show that the proposed method has some academic and practical application value.
中文关键词	海冰模型 ; 水声信道 ; 扩频通信 ; 分集技术
英文关键词	sea ice model acoustic telemetry channel spread spectrum diversity technology
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ACOUSTICS
WOS研究方向	Acoustics
CSCD记录号	CSCD:6403325
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/238561
作者单位	中国科学院声学研究所, 北京 100190, 中国
推荐引用方式 GB/T 7714	刘崇磊,尹力,普湛清,等. 基于声场模型的北极冰下扩频通信性能研究[J],2018,39(12):255-264.
APA	刘崇磊,尹力,普湛清,&黄海宁.(2018).基于声场模型的北极冰下扩频通信性能研究.仪器仪表学报,39(12),255-264.
MLA	刘崇磊,et al."基于声场模型的北极冰下扩频通信性能研究".仪器仪表学报 39.12(2018):255-264.