一种用于声诱饵的快速迭代均衡算法
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- 英文论文题名：A fast iterative equalization algorithm for the decoy
- 论文作者：张建功 ; 李玲
- 英文论文作者：ZHANG Jian-gong ; LI Ling ; Shanghai Marine Electronic Equipment Research Institute
- 年：2016
- 作者机构：上海船舶电子设备研究所;
- 论文关键词：迭代均衡 ; 声诱饵 ; FIR ; 最小p方误差准则
- 英文论文关键词：iterative equalization ; decoy ; FIR ; minimization of a p-error criterion
- 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：TN715
- 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：4
- 文件大小：394k
- 原文格式：D
- 会议级别：全国
摘要
讨论了数字均衡器在声诱饵的作用,接收信号均衡用于补偿接收换能器灵敏度,发射信号均衡用于补偿发射换能器发射响应曲线。介绍了FIR均衡滤波器线性相位的四种情况。讨论了FIR均衡滤波器设计方法,并选用滤波器频率抽样法进行设计。提出了一种快速迭代均衡算法,对目标频响值进行逐次逼近,并利用最小p方误差准则作为迭代中止条件依据。该算法具有快速收敛、占用资源少、高精度和线性相位的特点。经过Matlab仿真试验验证该算法是有效可行的。该算法对资源有限的声诱饵有一定的应用价值。
The function of digital equalizer in receiving while emitting decoy is discussed, and the received signal equalizer is used to equalize the sensitivity of receiving transducer, and the transmit signal equalizer is used to balance the voltage response of transmitting transducer. The characteristic of four linear phase FIR filters is introduced. The design method of FIR equalizer is discussed, and frequency sampling method is chosen for the design. An iterative equalization algorithm is proposed, and the target curve of frequency response is successive approximation, and the minimization of a p-error criterion is used as termination condition for iteration. This algorithm has the advantages of fast iteration, less resource occupied, high accuracy and linear phase. The algorithm is proved to be available and feasible by Matlab simulation, which has the application value for resource-constrained decoy.
The function of digital equalizer in receiving while emitting decoy is discussed, and the received signal equalizer is used to equalize the sensitivity of receiving transducer, and the transmit signal equalizer is used to balance the voltage response of transmitting transducer. The characteristic of four linear phase FIR filters is introduced. The design method of FIR equalizer is discussed, and frequency sampling method is chosen for the design. An iterative equalization algorithm is proposed, and the target curve of frequency response is successive approximation, and the minimization of a p-error criterion is used as termination condition for iteration. This algorithm has the advantages of fast iteration, less resource occupied, high accuracy and linear phase. The algorithm is proved to be available and feasible by Matlab simulation, which has the application value for resource-constrained decoy.
引文
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[2]周伟江,景永刚,陈梦英.数字均衡技术在水声宽带系统的应用[J].声学技术,2012;31(2):219-222.ZHOU Wei-jiang,JING Yong-gang,CHEN Meng-ying.Application of digital equalizer technology in underwater broadband system[J].Technical Acoustics,2012;31(2):219-222.
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[4]Brandenstein H,Unbehauen R.Weighted least-squares approximation of FIR by digital filters[J].IEEE Trans.Signal Processing,2001,49(3):558-568.