| 宽带分裂波束探鱼仪探测性能预报建模及仿真分析 |
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| 引用本文： | 吴陈波,谌志新,李国栋,汤涛林,许明昌,刘晃.宽带分裂波束探鱼仪探测性能预报建模及仿真分析[J].渔业现代化,2020(3):72-79. |
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| 作者姓名： | 吴陈波 谌志新 李国栋 汤涛林 许明昌 刘晃 |
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| 作者单位： | 中国水产科学研究院渔业机械仪器研究所;上海海洋大学工程学院 |
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| 基金项目： | 青岛海洋科学与技术国家实验室主任基金项目(QNLM201711);蓝色粮仓科技创新国家重点研发计划“深远距离与高分辨率鱼群探测及装备研制”课题(2019YFD0901403);山东省重大科技创新工程专项课题(2018SDKJ0103-1);中国水产科学研究院科研基本业务费课题(2019XT03、2019CY0404);中国水产科学研究院渔业机械仪器研究所科研基本业务费课题(2019LKYJK006)。 |
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| 摘 要： | 宽带分裂波束探鱼仪探测性能由多种因素相互影响、共同作用,作为最关键的技术指标,直接影响该探鱼仪的实际使用。为了指导后续该类型探鱼仪的研制和使用,需要梳理不同因素对其探测性能的影响过程。采用水声学系统建模的方法,结合典型参数及海洋环境,根据主动声呐方程给出了在噪声背景下、体积混响背景下和体积混响与噪声混叠背景下有效作用距离预报模型,并分析了主要制约因素;进行了不同背景下探测性能的仿真,讨论了不同海况下频率对不同目标强度鱼探测性能的影响,对比了窄带系统和宽带系统对抗混响的能力;通过对宽带分裂波束探鱼仪探测性能的声学仿真结果明确了实际使用环境中不同参数对探测性能的影响,为远距离、高分辨率宽带分裂波束探鱼仪的研制提供了改进方向。
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| 关 键 词： | 宽带分裂波束探鱼仪 主动声呐方程 作用距离 探测性能 |
Modeling and simulation analysis of detection performance prediction of wideband split-beam fish finder |
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| WU Chenbo,CHEN Zhinxin,LI Guodong,TANG Taolin,XU Mingchang,LIU Huang.Modeling and simulation analysis of detection performance prediction of wideband split-beam fish finder[J].Fishery Modernization,2020(3):72-79. |
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| Authors: | WU Chenbo CHEN Zhinxin LI Guodong TANG Taolin XU Mingchang LIU Huang |
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| Institution: | (Fishery Machinery and Instrument Research Institute, Chinese Academy of Fishery Science, Shanghai 200092;College of Engineering Science and Technology, Shanghai Ocean University, Shanghai 201306) |
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| Abstract: | The detection performance of wideband split beam fish finder is the most important technical index,which directly affects the use of the fish finder.The detection performance is affected by various factors.In order to guide the subsequent development and use of this type of fish finder,it is necessary to sort out the influence process of different factors on its detection performanc.Using the modeling method of hydroacoustic system,combined with typical parameters and marine environment,the effective rang prediction model and main restricting factors under noise background,volume reverberation background and volume reverberation and noise aliasing background are given according to the active sonar equation.The detection performance is simulated under different backgrounds.The influence of frequency on the detection performance of different target strength fishes under different sea conditions is discussed and the ability of narrowband systems and wideband systems to counter reverberation is compared.The effects of different parameters on the detection performance in the actual application environment are analyzed based on the simulation results,which provide an improvement direction for the development of long-distance,high-resolution wideband split beam fish finder. |
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| Keywords: | wideband split-beam fish finder active sonar equation range of action detection performance |
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