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首页> 外文期刊>ICES Journal of Marine Science >Factors affecting the performance of the acoustic ground discrimination system RoxAnn~(TM)
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Factors affecting the performance of the acoustic ground discrimination system RoxAnn~(TM)

机译：影响声学地面判别系统RoxAnn〜（TM）性能的因素

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摘要

The resolution, temporal variability and survey vessel speed dependence of the acoustic ground discrimination system RoxAnn~(TM) was assessed over a 1 km~2 area in Loch Linnhe on the west coast of Scotland. The resolution of the system was relatively poor and of the sediment parameters quantified (stone cover and sediment texture), only stone cover was consistently and significantly related to the RoxAnn~(TM) output. The output showed considerable variability over the same ground when sampled within the same day and between days and months. The effect of survey vessel speed on the output was also significant but highly variable during all surveys. The apparent magnitude and unpredictable nature of the variation in the RoxAnn? output have implications for the use of such systems in habitat mapping, particularly when surveying biological communities where there are only small differences in the physical properties of the seabed and also where monitoring temporal change. These aspects are discussed.
机译：在苏格兰西海岸的林赫河上，在1 km〜2的区域内评估了声学地面判别系统RoxAnn〜（TM）的分辨率，时间变化和测量船的速度依赖性。该系统的分辨率相对较差，并且对沉积物参数（石头覆盖物和沉积物质地）进行了量化，只有石头覆盖物与RoxAnn〜（TM）的产出一致且显着相关。当在同一天以及几天和几个月之间进行采样时，输出在同一地面上显示出相当大的可变性。在所有调查中，调查船速度对输出的影响也很明显，但变化很大。 RoxAnn的变化的明显程度和不可预测的性质？产出对于在栖息地测绘中使用此类系统具有影响，特别是在调查生物群落时，这些生物群落的海床物理特性只有很小的差异，并且还监测时间变化。讨论了这些方面。

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