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- 2018
基于海底底质回波特征的多波束声呐图像角度响应影响消除
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Abstract:
角度响应（angular response，AR）对回波强度影响较大，而目前的改正算法尚不完善，给多波束声呐回波强度的应用带来了较大困难。为此，提出了一种利用底质回波强度特征的AR聚类改正方法。首先，借助多波束声呐回波强度数据实施非监督底质分类；然后，研究每类底质的AR特征，形成每种底质的AR曲线簇；最后，结合每种底质的AR曲线簇，从观测的回波强度序列中减去对应底质的AR值，并将其归一化到平均强度，最终实现了回波强度中AR影响的消除。将该方法应用于实际回波处理中，取得了高质量的多波束声呐图像
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