文章摘要
王新勇,惠俊英.非对称阵互谱相位法被动测距的改进研究[J].声学技术,2005,(2):76~79,83
非对称阵互谱相位法被动测距的改进研究
Optimization of asymmetrical passive-ranging with cross-spectra
投稿时间:2004-07-02  修订日期:2004-12-15
DOI:
中文关键词: 互谱法  被动测距  快速目标跟踪  测距盲区
英文关键词: passive-ranging  cross-spectra  fast-moving target tracking  blind zone
基金项目:
作者单位
王新勇 中兴通讯股份有限公司上海研发中心, 上海, 201203 
惠俊英 哈尔滨工程大学水声工程学院, 哈尔滨, 150001 
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中文摘要:
      针对常规被动声纳的非对称阵布阵方式,对常规的互谱法被动测距进行改进研究,推导出适合远近程测距的测距公式,解决了近程测距模糊问题,进而实现了互谱法改进研究算法的DSP硬件处理。并研究了后置滤波技术,采用基于自适应抵消的参数估计器取代传统的Kalman滤波器。实现了被动声纳的150m和15km之间的全程测距(传统被动声呐仅能对3km~4km以外的目标测距)和对快速目标的跟踪。在近程测距中,实现了潜艇尾部测距缩小盲区。原测距系统在30°~150°范围测距。改造后的互谱测距在3km时,能对20°~160°范围测距,在300m时,能对10°~170°范围测距。测距相对误差小于5%。在近程提高了潜艇的机动性。
英文摘要:
      Improvement of passive ranging based on cross spectra leads to an optimized ranging formula applicable to both far and near targets The proposed cross-spectra optimization method is implemented with DSP The system can be used for whole ranging and tracking fast-moving targets In near target ranging,the blind zone of submarine tail ranging is significantly reduced The pro-ranging system can range from 30°to 150°After optimization,the system is capable of ranging from 20°to 160°for targets at 3km and from 10°to 170°for targets at 300m,with errors less than 5% The technique is very useful in improving mobility of submarines.
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