哪里有Whaledo:一个软件工具包,用于对动物发声的阵列本地化
Eric R Snyder1, Alba Solsona-Berga1, Simone Baumann-Pickering1
1Scripps Institution of Oceanography, University of California San Diego, La Jolla, California, United States of America.
PLoS computational biology
|May 20, 2024
概括
哪里有鱼软件通过被动声学定位加速动物跟踪. 这种非侵入性方法有助于海洋哺乳动物的保护,通过揭示运动和息地使用,即使在杂的环境中.
科学领域:
- 海洋生物学 海洋生物学
- 生物声学是一种生物声学.
- 声学监控 声学监控 声学监控
背景情况:
- 被动声学定位对于非侵入性海洋哺乳动物研究和保护至关重要.
- 了解动物的运动,潜水模式和息地使用提供了重要的生态洞察力.
- 声学数据有助于评估人类对噪音的行为反应,并制定减轻噪音的策略.
研究的目的:
- 介绍Where's Whaledo,这是一个软件工具包,旨在加快从被动声学监测数据中重建动物踪迹.
- 为了证明Where's Whaledo在定位和跟踪海洋哺乳动物,特别是Ziphius cavirostris的有效性.
主要方法:
- 使用软件工具包,结合自动化流程和用户界面进行声学数据分析.
- 采用一系列被动声学录音设备来检测和定位声源.
- 集成来自小光圈体积阵列和单个接收器的数据,以使用到达时间差 (TDOA) 估计声音源位置.
主要成果:
- 在南加利福尼亚州坦纳盆地成功重建了6个同时发声的Ziphius cavirostris的轨迹.
- 证明了识别和跟踪目标物种的声音的能力,即使被其他海洋哺乳动物 (如海豚) 的声音掩盖.
- 在复杂的声学环境中验证了Where's Whaledo工具包的有效性.
结论:
- "哪里有鱼"显著加速了从被动声学数据中重建动物轨迹的过程.
- 该工具包为海洋保护工作提供了强有力的工具,可以详细了解动物行为和息地利用情况.
- 这项技术对于追踪难以捉摸的物种和在声学上具有挑战性的场景中是有效的,为生物声学研究提供了进步.
相关概念视频
01:01Perception of Sound Waves
The human ear is not equally sensitive to all frequencies in the audible range. It may perceive sound waves with the same pressure but different frequencies as having different loudness. Moreover, the perception of sound waves depends on the health of an individual's ears, which decays with age. The health of one's ears may also be affected by regular exposure to loud noises.
The pitch of a sound depends on the frequency and the pressure amplitude of the source. Two sounds of the same frequency...
The pitch of a sound depends on the frequency and the pressure amplitude of the source. Two sounds of the same frequency...
01:06Echo
The human ear cannot distinguish between two sources of sound if they happen to reach within a specific time interval, typically 0.1 seconds apart. More than this, and they are perceived as separate sources.
Imagine the sound is reflected back to the ears. Assuming that the source is very close to the human, the difference between hearing the two sounds—the emitted sound and the reflected sound—may be more than the minimum time for perceiving distinct sounds. If this is the case, then the...
Imagine the sound is reflected back to the ears. Assuming that the source is very close to the human, the difference between hearing the two sounds—the emitted sound and the reflected sound—may be more than the minimum time for perceiving distinct sounds. If this is the case, then the...