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首页> 外文会议>IEE Colloquium on Recent Advances in Sonar Applied to Biological Oceanography >FishMASS: what can you do with a little bandwidth when you are watching fish?
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FishMASS: what can you do with a little bandwidth when you are watching fish?

机译：鱼马斯：当你看鱼时，你能用一点点带宽怎么办？

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摘要

FishMASS (Fish Monitoring Acoustic Sensing System) is an NSF-funded project designed to adapt broadband acoustic Doppler current profiling (ADCP) technology to split-beam fisheries sonar. ADCPs use Doppler methods to observe ocean current profiles, and split-beam sonars locate targets within well-calibrated beams to determine target strength, and indirectly, fish size distributions. Combined ADCP/split-beam sonars would have the obvious advantage of enabling a split-beam sonar to measure a component of a fish's velocity. It turns out that broadband signal processing, now standard in ADCPs, offers other less-obvious benefits too. Wide acoustic bandwidth enables more precise single-ping echo intensity measurements and better separation of closely-spaced targets and it provides information about the echo spectrum. This paper reviews these new capabilities and describes a prototype FishMASS system now being used for laboratory and field investigations.
机译：Fishmass（鱼类监测声学传感系统）是一个NSF资助的项目，旨在使宽带声学多普勒电流分析（ADCP）技术适应分裂束渔店。 ADCPS使用多普勒方法来观察海洋电流配置文件，并且分裂梁声琴毂定位在良好校准的光束内的目标，以确定目标强度，间接的鱼尺寸分布。组合的ADCP / Split-Beam Sonar将具有明显的优点，使分离梁声纳测量鱼速度的组件。事实证明，宽带信号处理，现在在ADCPS中标准，也提供了其他不明显的好处。宽声带带宽使得能够更精确的单ping回波强度测量，并更好地分离紧密间隔的目标，并提供有关回声频谱的信息。本文审查了这些新功能，并描述了一个原型鱼类系统，目前用于实验室和现场调查。

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