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区域噪声源的位置基于来自环境噪声干扰测量的两个站之间的时间延迟
Ziqiang Lü1, Qian Liu2, Qinghan Kong2
1College of Mining, Liaoning Technical University, Fuxin, 123000, China. ziqianglyu@sina.com.
Scientific reports
|May 4, 2024
概括
本研究引入了一种简化的环境噪声干扰测量方法,以精确定位地震和火山噪声源. 该技术使用站对时间延迟,有效用于危险评估和检测时间依赖的源行为.
科学领域:
- 地质物理学 地质物理学
- 地震学 地震学
- 火山学 火山学是一门学科.
背景情况:
- 准确的噪音源定位对于了解地震和火山活动至关重要.
- 传统方法经常重建源能量,这可能是复杂的.
研究的目的:
- 开发和验证一种使用环境噪声干扰计绝对噪声源定位的简化方法.
- 评估方法在现实场景中的精度和适用性.
主要方法:
- 使用来自环境噪声干扰测量的站对时间延迟.
- 进行合成测试以评估方法的稳定性和精度.
- 将该方法应用于来自中部天山地区的数据.
主要成果:
- 该方法在合成测试中显示出稳定性,其精度受到信号噪声比的影响.
- 频率更高的带宽源信号产生更准确的检测.
- 使用实证格林函数成功定位了已知的虚拟源.
- 在假设表面波速的简化3D均模型中,可以对源深度进行估计.
结论:
- 开发的方法为绝对噪声源定位提供了一种简化方法.
- 环境噪声干扰测量是识别潜在源及其时间依赖行为的宝贵工具.
- 这种技术增强了地震和火山危险评估能力.
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