| 王飞,傅寅锋,唐劲松.圆柱阵主动声纳混响抑制方法研究[J].声学技术,2012,(4):442~446 |
| 圆柱阵主动声纳混响抑制方法研究 |
| Study of a reverberation suppression method for the active sonar with a cylindrical array |
| 投稿时间：2010-07-22 修订日期：2011-01-11 |
| DOI：10.3969/j.issn1000-3630.2012.04.021 |
| 中文关键词: 圆柱阵主动声纳 角度-多普勒补偿 导数更新 降维空时自适应处理 |
| 英文关键词: active sonar with cylindrical array Modified Angle-Doppler Compensation(MADC) Derivative Based Updating (DBU) the reduced space-time adaptive-processing(STAP) |
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| 中文摘要: |
| 圆柱阵主动声纳混响的强非均匀性, 会降低空时自适应处理的性能。对圆柱阵主动声纳混响的空时二维分布特性以及混响数据的非均匀性进行分析, 在此基础上研究了基于修正的角度-多普勒补偿(Modified Angle-Doppler Compensation, MADC)和导数更新技术(Derivative Based Updating, DBU)的降维自适应处理方法在圆柱阵声纳混响抑制中的应用。仿真结果表明：这两项技术可降低混响的非均匀程度, 对运动中的圆柱阵主动声纳有较好的混响抑制效果, 其性能更接近最优处理。 |
| 英文摘要: |
| The reverberation of the active sonar with a cylindrical array is non-homogenous, which can deteriorate the performance of space-time adaptive-processing (STAP). In this article, two-dimensional reverberation distribution and non-homogeneity are analyzed in detail. Then, a reverberation suppression method is studied, which involves processing with reduced STAP based on the modified Angle-Doppler compensation (MADC) and the derivative-based updating (DBU) technique. Simulations show that the two techniques can reduce non-homogeneity of reverberation, and so, better reverberation suppression effects are achieved in the active sonar with a cylindrical array. |
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