| 基于四阶累积量的被动测向声纳高分辨力算法研究 |
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| 引用本文： | 王良,宋志杰,杜纪燕.基于四阶累积量的被动测向声纳高分辨力算法研究[J].中国海洋大学学报(自然科学版),2007,37(2):211-214. |
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| 作者姓名： | 王良 宋志杰 杜纪燕 |
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| 作者单位： | 中国海洋大学物理系,山东,青岛,266100 |
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| 摘 要： | 利用高阶累积量的阵列扩展和抑制高斯噪声特性,提出1种基于四阶累积量的逆波束形成算法,并通过滑动平均进一步改善了算法。仿真结果和实验数据表明:逆波束形成算法较常规波束形成方法在空间方位分辨力和噪声抑制能力上明显提高,可以更有效地应用于被动测向声纳中。
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| 关 键 词： | 被动测向声纳 四阶累积量 逆波束形成 |
| 文章编号： | 1672-5174(2007)02-211-04 |
| 修稿时间： | 2006-03-13 |
High Resolution Algorithm for Passive Direction Finding Sonar Analysis Based on Fourth-Order Cumulants |
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| WANG Liang,SONG Zhi-Jie,DU Ji-Yan.High Resolution Algorithm for Passive Direction Finding Sonar Analysis Based on Fourth-Order Cumulants[J].Periodical of Ocean University of China,2007,37(2):211-214. |
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| Authors: | WANG Liang SONG Zhi-Jie DU Ji-Yan |
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| Institution: | Department of Physics, Ocean University of China, Qingdao 266100, China |
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| Abstract: | The article proposed an inverse beamforming method based on fourth-order cumulants by using their the array extension and noise restrain characteristics and improved the algorithm performance through moving average.The simulation results and experimentale data indicate that the performance of spatial-azimuth resolution and noise restraining is improved remarkably than conventional beamforming.Thus,the algorithm can be utilized in passive direction finding sonar more effectively. |
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| Keywords: | passive direction finding sonar fourth-order cumulants inverse beamforming |
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