摘要
通过对初至波与scholte波到达时刻提取的方法研究,提出计盒分形维数算法和修正后的平滑伪魏格纳分布时频分析算法分别对初至波和scholte波到达时刻进行提取,两者时差主要应用于水下舰船目标探测研究。在此背景下,通过模拟浅海海底环境进行地震波数据采集,并拾取初至波与scholte波,获取两者时差,从而验证了所提算法的有效性。
By researching the method of preliminary wave and scholte wave of arrival time extraction,a box counting fractal dimension algorithm is proposed to extract the time of preliminary wave arrival and give a correction to extract the time of scholte wave arrival after the smoothed pseudo Wigner Ville distribution frequency analysis method.The time difference between the two waves is mainly used in underwater ship target survey research.In this context,the shallow seabed environment model system is taken toextract preliminary wave and scholte wave with time difference for seismic wave data collection,which verifies the algorithm validity.
出处
《沈阳理工大学学报》
CAS
2016年第6期82-87,共6页
Journal of Shenyang Ligong University
关键词
初至波
scholte波
计盒分形维数法
修正的平滑伪魏格纳分布
preliminary wave
scholte wave
box counting fractal dimension
modified smoothed pseudo Wigner-Ville transform
