| Chirp技术及其在海底浅层勘探中的应用 |
| |
| 引用本文： | 丁维凤,冯霞,来向华,苟诤慷,傅晓明. Chirp技术及其在海底浅层勘探中的应用[J]. 海洋技术学报, 2006, 25(2): 10-14 |
| |
| 作者姓名： | 丁维凤 冯霞 来向华 苟诤慷 傅晓明 |
| |
| 作者单位： | 国家海洋局第二海洋研究所,浙江,杭州,310012;杭州职业技术学院,浙江,杭州,310018 |
| |
| 基金项目： | 国家海洋局青年海洋科学基金项目资助(2005309) |
| |
| 摘 要： | Ch irp子波因其宽的频带、长的脉冲延续时间和似白噪音的频率扫描特点,经过子波振幅包络和相关等处理后,具有很高的地层分辨率和资料信噪比,因而在海底浅地层调查中被广泛的采用。文中从Ch irp子波的波形生成开始,逐次讨论它的子波振幅包络和相关处理技术,以及它的分辨率的问题,最后以工程勘查中的实际例子证明Ch irp技术的优越性,同时还讨论了其技术的局限性,以便能对Ch irp技术有个深刻的了解。
|
| 关 键 词： | Chirp技术 分辨率 信噪比 穿透深度 |
| 文章编号： | 1003-2029（2006）02-0010-05 |
| 收稿时间： | 2005-12-12 |
| 修稿时间： | 2005-12-12 |
Chirp Technology and its Application in the Sub-bottom Engineering Surveyim |
| |
| DING Wei-feng,FENG Xia,LAI Xiang-hua,GOU Zheng-kang,FU Xiao-ming. Chirp Technology and its Application in the Sub-bottom Engineering Surveyim[J]. Ocean Technology, 2006, 25(2): 10-14 |
| |
| Authors: | DING Wei-feng FENG Xia LAI Xiang-hua GOU Zheng-kang FU Xiao-ming |
| |
| Affiliation: | 1. Second Institute of Oceanography, SOA, Hangzhou 310012, China; 2. Hangzhou Vocational and Technical College, Hangzhou 310018, China |
| |
| Abstract: | Chirp is characterized by a wide band,long impulse duration and white noise-like frequency.Through amplitude enveloping and correlation processing, it has high sub-bottom resolution and high signal noise rate(SNR),and is widely applied in the sea sub-bottom engineering survey.The Chirp wavelet construction,amplitude enveloping and correlative technology and resolution problems are introduced.At last,an engineering example showing Chirp technology's excellence is given and its shortcoming in actual application is discussed. |
| |
| Keywords: | Chirp technology resolution signal noise rate(SNR) penetration range |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
