双阵目标功率谱的融合处理方法
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- 英文论文题名：A fusion processing method of power spectrum based on double arrays
- 论文作者：尚金涛 ; 骆国强 ; 马启明
- 英文论文作者：SHANG Jin-tao ; LUO Guo-qiang ; MA Qi-ming ; Hangzhou Applied Acoustics Reasearch Institute ; Science and Technology on Sonar Laboratory
- 年：2016
- 作者机构：声纳技术重点实验室;
- 论文关键词：目标辐射噪声 ; 功率谱 ; 逐点搜索法 ; 融合处理
- 英文论文关键词：target-radiated noise ; power spectrum ; searching method point-by-point ; fusion processing
- 会议召开时间：2016-08-21
- 会议录名称：2016’中国西部声学学术交流会论文集
- 语种：中文
- 分类号：TB56
- 学会代码：SXJS
- 会议名称：2016’中国西部声学学术交流会
- 会议地点：中国四川成都
- 主办单位：中国声学学会微声学分会、中国声学学会物理声学分会、陕西省声学学会、浙江省声学学会、山东省声学学会、上海市声学学会、黑龙江省声学学会、水声技术重点实验室、重庆市声学学会、西安市声学学会、四川省声学学会
- 学会名称：《声学技术》编辑部
- 页数：5
- 文件大小：522k
- 原文格式：D
- 会议级别：全国
摘要
功率谱是表征声纳目标辐射噪声特性的重要特征,但单一基阵工作频率范围有限,难以反映功率谱全景分布特征。声纳系统配置的艏端阵、拖线阵等多种阵列形式在工作频段上存在一定的交叉重叠,有较强互补性。由于不同基阵安装要求及受环境的影响程度不同,且其空间处理响应也存在差别,导致多阵目标功率谱难以直接融合处理。文中提出了双阵功率谱融合处理方法,主要利用共有频段内的艏端阵功率谱,采用均方误差最小化的逐点搜索法修正拖线阵功率谱,并将修正后的拖线阵功率谱与艏端阵的进行融合。仿真结果表明:该方法能有效融合艏端阵和拖线阵的功率谱,获得了全频带的功率谱。
Power spectrum is an important feature that characterizes target-radiated noise characteristics of sonar. But the operating frequency scope of single-array is limited, which can hardly reflect whole scene distributed characteristic. Bow array and towed line array are allocated in sonar system, their operating frequencies have certain cross and overlap with highly complementarity. Due to the incidence of installation requirements and surroundings for bow array and towed line array, and the spatial processing responses of bow array and towed line array are different, the power spectrum based on double arrays is hardly fused directly. A fusion processing method based on double arrays is proposed using the mutual power spectrum of bow array, error of mean square minimization by searching point-by-point is utilized to modify the power spectrum of towed line array for fusing with power spectrum of bow array. The result of simulation indicates that the power spectrums of bow array and towed line array are fused effectively by this method and full power spectrum is obtained.
Power spectrum is an important feature that characterizes target-radiated noise characteristics of sonar. But the operating frequency scope of single-array is limited, which can hardly reflect whole scene distributed characteristic. Bow array and towed line array are allocated in sonar system, their operating frequencies have certain cross and overlap with highly complementarity. Due to the incidence of installation requirements and surroundings for bow array and towed line array, and the spatial processing responses of bow array and towed line array are different, the power spectrum based on double arrays is hardly fused directly. A fusion processing method based on double arrays is proposed using the mutual power spectrum of bow array, error of mean square minimization by searching point-by-point is utilized to modify the power spectrum of towed line array for fusing with power spectrum of bow array. The result of simulation indicates that the power spectrums of bow array and towed line array are fused effectively by this method and full power spectrum is obtained.
引文
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[2]PIYUSH AGGARWAL,HARDIK KAUSHIK.Hybrid classifier for marine vessel based upon propulsion type[J].IEEE,2010.
[3]陈浩,尚金涛,孙伟.线列阵功率谱特征恢复与拼接方法[J].声学与电子工程,2014,6(2):1-5.
[4]田坦,刘国枝,孙大军.声纳技术[M].哈尔滨:哈尔滨工程大学出版社,2000.
[5]许兆鹏,韩树平.一种多基阵机动目标被动跟踪算法[J].应用声学,2011,30(4):282-287.
[6]BAR-SHALOM Y,FORTMANN T E.Tracking and data association[M].Academic Press,1988.