Page 140 - 201805

第 37 卷 第 5 期 Vol. 37, No.5
2018 年 9 月 Journal of Applied Acoustics September, 2018

纪念应崇福院士诞辰100周年

起伏海面环境下水声信道特性及估计方法 ∗

陈文剑 1,2,3 郎鹏远 1,2,3 尹 爽 1,2,3 殷敬伟 1,2,3† 孙 辉 1,2,3 韩 笑 1,2,3

(1 哈尔滨工程大学水声技术重点实验室 哈尔滨 150001)
(2 海洋信息获取与安全工信部重点实验室哈尔滨工程大学 工业和信息化部 哈尔滨 150001)
(3 哈尔滨工程大学水声工程学院 哈尔滨 150001)
摘要 为了研究随机起伏海面的散射对水声信道特性的影响，以及不同信道估计算法在该信道条件下的性能
问题，该文从利用 Monte Carlo 方法模拟的基于 PM 海浪谱的二维随机起伏海面出发，提取了与风向不同夹角
的一维随机起伏海面，并利用 Kirchhoff 近似法计算了其散射强度。将得到的声散射特性和海面环境信息融入
到信道模型中，建立了基于 PM 海浪谱的随机信道模型。通过仿真分析了不同风速、传播距离条件下，声波的
传播损失和信道冲激响应变化，并利用 l 0-最小均方误差法、匹配追踪算法和正交匹配追踪算法进行了信道估
计。给出了不同环境条件下，三种算法估计性能的综合比较结果，验证了算法针对该信道模型的有效性。
关键词 声散射，海浪谱，水声信道特性，信道估计
中图法分类号: TB567 文献标识码: A 文章编号: 1000-310X(2018)05-0722-010
DOI: 10.11684/j.issn.1000-310X.2018.05.017

Characteristic and estimation method of underwater acoustic channel in fluctuant
sea environment

CHEN Wenjian 1,2,3 LANG Pengyuan 1,2,3 YIN Shuang 1,2,3 YIN Jingwei 1,2,3 SUN Hui 1,2,3

HAN Xiao 1,2,3

(1 Acoustic Science and Technology Laboratory, Harbin Engineering University, Harbin 150001, China)
(2 Key Laboratory of Marine Information Acquisition and Security ( Harbin Engineering University ), Ministry of Industry and
Information Technology, Harbin 150001, China)
(3 College of Underwater Acoustic Engineering, Harbin Engineering University, Harbin 150001, China)
Abstract In order to study the influence of the scattering of random fluctuation sea surface on the
characteristics of underwater acoustic channel, and the performance of different channel estimation algorithms
under this channel condition, this paper starts from the two-dimensional random fluctuation sea surface based
on the PM wave spectrum simulated by the Monte Carlo method, a one-dimensional random fluctuation sea
surface with different angles to the wind direction is extracted, and the scattering intensity is calculated using
the Kirchhoff approximation. The obtained acoustic scattering characteristics and sea surface environmental
information were integrated into the channel model, and a random channel model based on PM wave spectrum
was established. Through simulation, the propagation loss of acoustic wave and channel impulse response
under different wind speeds and propagation distances were analyzed. The channel estimation was performed by

2018-06-07 收稿; 2018-07-23 定稿
国家自然科学基金重点项目 (61631008), 国家自然科学基金青年基金项目 (11404077), 国家海洋公益性行业科研专项 (201405036)
∗
作者简介: 陈文剑 (1981- ), 男, 陕西大荔人, 博士研究生, 讲师, 研究方向: 水下目标声散射、极地声学。
† 通讯作者 E-mail: yinjingwei@hrbeu.edu.cn