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Updated: May 6, 2026

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分布式声学传感用于未来的行星应用:旧金山火山场的初步结果,一个月球模拟
Nicholas Harmon1, Ryan Porter2, Catherine Rychert1
1Woods Hole Oceanographic Institution Woods Hole MA USA.
概括
分布式声学传感 (DAS) 为行星体提供了一个轻量级,可部署的地震勘探替代方案. 实验表明,DAS数据与传统的地震计保持一致,证明了其在近地表地质研究中的潜力.
科学领域:
- 地质物理学 地质物理学
- 行星科学 行星科学
- 地震学 地震学
背景情况:
- 地震成像对于理解行星内部和进化至关重要.
- 传统的地震设备面临着行星探索的部署和后勤挑战.
- 使用光纤的分布式声学传感 (DAS) 提供了一个新的,可部署的替代方案.
研究的目的:
- 评估使用DAS用于行星近地表面地震勘探的可行性和操作实践.
- 为了比较DAS性能与传统的地震仪器在月球地质物理模拟站点.
- 在行星探索背景下建立DAS的实证响应函数.
主要方法:
- 表面部署的光纤电缆用于DAS地震数据采集.
- 将DAS记录与3组分地震计和地基声数据进行比较.
- 分析地震阶段,折射到达和多通道表面波分析.
- 确定经验反应函数和光谱连贯性.
主要成果:
- DAS记录与传统的地震数据有视觉相关性,显示了类似的相位移动.
- DAS准确地捕捉到第一批抵达者,适合地震折射调查.
- 使用DAS数据对表面波的多通道分析有效地估计了浅切速.
- 在DAS和水平地震计组件之间观察到高光谱连贯性 (∼0.7).
- 稳定的实证响应函数 (幅度为≤1.0-3.0 × 10−10 m/株) 和线性相应响应得到证实.
结论:
- 地表部署的DAS显示出在行星环境中近地表地震勘探的巨大潜力.
- DAS为传统的地震仪器提供了一个可行的,轻量级的,易于部署的替代方案.
- 对操作实践的进一步研究可以为未来的行星任务优化DAS.
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