| 基于单回波检测跟踪的深水网箱生物量评估模型研究 |
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| 引用本文： | 黄健,关长涛,汤涛林,李娇.基于单回波检测跟踪的深水网箱生物量评估模型研究[J].渔业现代化,2008,35(6). |
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| 作者姓名： | 黄健 关长涛 汤涛林 李娇 |
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| 作者单位： | 1. 中国水产科学研究院渔业机械仪器研究所,农业部渔业装备与工程重点开放实验室,上海,200092
2. 中国水产科学研究院黄海水产研究所,青岛,266071 |
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| 基金项目： | 国家"863"高技术研发计划项目
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| 摘 要： | 构造了基于声纳信号处理的深水网箱生物量评估数学模型。运用单回波脉宽检测和跟踪方法，结合二维低通滤波器，对声纳数据进行处理，去除背景噪声和其他回波，在单体鱼连续的回波踪迹中可以检测出鱼的游速和方向。同时，结合图像分析有效压缩噪声，提取有用特征来识别检测到的鱼迹，形成一种自动计数方法，提高生物量的检测概率。该方法通过提取和使用原始的回声图像，检测出运动目标，同时压缩回声图中的噪声，从而在低信噪比数据中实现对网箱中生物量的检测和估计，适合实际工程应用。
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| 关 键 词： | 单回波检测 低通滤波 深水网箱 生物量评估 |
Research on a novel biomass estimation model for deep water net cages based on single echo detection and tracking |
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| HUANG Jian,GUAN Chang-tao,TANG Tao-lin,LI Jiao.Research on a novel biomass estimation model for deep water net cages based on single echo detection and tracking[J].Fishery Modernization,2008,35(6). |
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| Authors: | HUANG Jian GUAN Chang-tao TANG Tao-lin LI Jiao |
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| Institution: | HUANG Jian1,GUAN Chang-tao2,TANG Tao-lin1,LI Jiao2(1 Fishery Machinery Instrument Research Institute,Chinese Academy of Fishery Sciences,Key Laboratory of Fishing Equipment , Engineering,Ministry of Agriculture,Shanghai 200092,China,2 Yellow Sea Fisheries Research Institute,Qingdao 266071,China) |
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| Abstract: | The mathematical model for biomass estimation in deep water net cages is constructed based on sonar signal processing.Signal echo detection and tracking method for pulse width together with 2-D low-pass filter is applied to process sonar data in order to dismiss background noises and other echoes.The swimming speed and direction of a single fish can be detected from its continuous echo track.Image analysis is also added to compress noises efficiently and pick up useful features to identify detected fish tra... |
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| Keywords: | single echo detection low-pass filter deep water net cages biomass estimation |
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