| 大气声传播通道的声源当量估计方法 |
| |
| 引用本文： | 程巍,滕鹏晓,吕君,张天予.大气声传播通道的声源当量估计方法[J].应用声学,2023,42(1):12-17. |
| |
| 作者姓名： | 程巍 滕鹏晓 吕君 张天予 |
| |
| 作者单位： | 中国科学院噪声与振动重点振动重点实验室 北京,中国科学院噪声与振动重点振动重点实验室 北京,中国科学院噪声与振动重点振动重点实验室 北京,中国科学院噪声与振动重点振动重点实验室 北京 |
| |
| 基金项目： | (No. 11774372,11874389) |
| |
| 摘 要： | 提出了一种基于大气声传播通道的爆炸声源能量估计方法，通过将计算大气声学的传播能量分布结果与大气中传播的声压幅度衰减模型相结合，使用平流层通道与热层通道传播损失能量比例作为修正量，提高了对爆炸声源能量的估计精度。在多次地面爆炸实验得到的数据中，使用观测距离800 km以上且同时存在平流层通道与热层通道的次声接收信号，对比了平流层顶风速修正的能量估计方法与该文提出的基于大气声传播通道的能量估计方法。实验结果验证了相对于传统风速修正的能量估计方法，该方法可显著降低估计误差。
|
| 关 键 词： | 次声传播 声源能量估计 大气声传播通道 通道能量分布修正 |
| 收稿时间： | 2021/10/10 0:00:00 |
| 修稿时间： | 2022/12/22 0:00:00 |
Energy estimation of explosion sound source based on the ratio of the energy of different tube |
| |
| Cheng Wei,Teng Pengxiao,Lyu Jun and Zhang Tianyu.Energy estimation of explosion sound source based on the ratio of the energy of different tube[J].Applied Acoustics,2023,42(1):12-17. |
| |
| Authors: | Cheng Wei Teng Pengxiao Lyu Jun and Zhang Tianyu |
| |
| Institution: | Key Laboratory of Noise and Vibration,Institute of Acoustics,Chinese Academy of Science,Key Laboratory of Noise and Vibration,Institute of Acoustics,Chinese Academy of Science,Key Laboratory of Noise and Vibration,Institute of Acoustics,Chinese Academy of Science,Key Laboratory of Noise and Vibration,Institute of Acoustics,Chinese Academy of Science |
| |
| Abstract: | A method based on the ratio of the energy of different tube (REDT) is proposed to estimate the energy of explosive sound source in this paper. The error of estimation can be reduced significantly through combining the energy distribution of calculating acoustic and the attenuation model of sound pressure in the atmosphere. The infrasound wave which propagates over 800km is used to compare the proposed method and the estimation method based on the vertical wind in mesosphere pause. The results of experiment verify the improvement of this method compared with former methods. |
| |
| Keywords: | infrasound propagation energy estimation of sound source modification based on the ratio of the energy of different tube |
|
| 点击此处可从《应用声学》浏览原始摘要信息 |
| 点击此处可从《应用声学》下载免费的PDF全文 |
|
