距离相关波导中匹配的场距离和深度分辨率

B. Tracey
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引用次数: 3

摘要

为了确定匹配场处理(MFP)的计算网格间距,需要估计距离和深度分辨率。本文展示了如何利用标准绝热公式,将先前关于距离无关波导的结果推广到考虑距离相关的结果。由于路径积分衰减损失的变化,在上行和下行传播中观察到MFP分辨率的显著差异。MFP分辨率由多径干扰长度设定,因此分辨率估计也与传输损耗衰落的预期空间尺度有关。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Matched field range and depth resolution in range-dependent waveguides
Estimates of range and depth resolution are required in order to determine computational grid spacings for matched field processing (MFP). In this paper it is shown how previous results for range-independent waveguides can be extended to account for range dependence by using standard adiabatic formulations. Significant differences in MFP resolution are observed for up-slope versus down-slope propagation due to changes in the path-integrated attenuation loss. MFP resolution is set by multipath interference lengths, so resolution estimates also relate to expected spatial scales for transmission loss fading.
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