Knowledge Resource Center for Ecological Environment in Arid Area
| DOI | 10.2172/5350452 |
| 报告编号 | DOE/ID/12079-46; ESL-62 |
| 来源ID | OSTI_ID: 5350452 |
| Computer simulation of low-frequency electromagnetic data acquisition | |
| SanFilipo, W.A.; Hohmann, G.W. | |
| 英文摘要 | Computer simulation of low frequency electromagnetic (LFEM) digital data acquisition in the presence of natural field noise demonstrates several important limitations and considerations. Without the use of a remote reference noise removal scheme it is difficult to obtain an adequate ratio of signal to noise below 0.1 Hz for frequency domain processing and below 0.3 Hz base frequency for time domain processing for a typical source-receiver configuration. A digital high-pass filter substantially facilitates rejection of natural field noise above these frequencies but, at lower frequencies where much longer stacking times are required, it becomes ineffective. Use of a remote reference to subtract natural field noise extends these low-frequency limits a decade, but this technique is limited by the resolution and dynamic range of the instrumentation. Gathering data in short segments so that natural field drift can be offset for each segment allows a higher gain setting to minimize dynamic range problems. |
| 出版年 | 1982 |
| 报告类型 | Technical Report |
| 语种 | 英语 |
| 国家 | 美国 |
| 来源学科分类 | 15 GEOTHERMAL ENERGY ; 58 GEOSCIENCES ; ELECTROMAGNETIC SURVEYS ; COMPUTERIZED SIMULATION ; DATA ACQUISITION SYSTEMS ; NOISE ; SIGNALS ; ELECTRICAL SURVEYS ; GEOPHYSICAL SURVEYS ; SIMULATION ; SURVEYS Geothermal Legacy 150301* -- Geothermal Exploration & Exploration Technology-- Geophysical Techniques & Surveys ; 580203 -- Geophysics-- Geophysical Survey Methods-- (1980-1989) |
| URL | http://www.osti.gov/scitech/servlets/purl/5350452 |
| 资源类型 | 科技报告 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/263214 |
| 推荐引用方式 GB/T 7714 | SanFilipo, W.A.,Hohmann, G.W.. Computer simulation of low-frequency electromagnetic data acquisition,1982. |
| 条目包含的文件 | 条目无相关文件。 | |||||
| 个性服务 |
| 推荐该条目 |
| 保存到收藏夹 |
| 导出为Endnote文件 |
| 谷歌学术 |
| 谷歌学术中相似的文章 |
| [SanFilipo, W.A.]的文章 |
| [Hohmann, G.W.]的文章 |
| 百度学术 |
| 百度学术中相似的文章 |
| [SanFilipo, W.A.]的文章 |
| [Hohmann, G.W.]的文章 |
| 必应学术 |
| 必应学术中相似的文章 |
| [SanFilipo, W.A.]的文章 |
| [Hohmann, G.W.]的文章 |
| 相关权益政策 |
| 暂无数据 |
| 收藏/分享 |
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
