| 磁法延拓在地磁背景场匹配中的应用研究 |
| |
| 引用本文： | 王景然,张启国,顾建松,郑军.磁法延拓在地磁背景场匹配中的应用研究[J].海洋测绘,2015,35(3):36-38. |
| |
| 作者姓名： | 王景然 张启国 顾建松 郑军 |
| |
| 作者单位： | 1. 中国船舶重工集团公司第七一五研究所,浙江杭州,311400
2. 92899部队,浙江宁波,315200 |
| |
| 摘 要： | 在浅海地区,由于复杂的地磁背景场会对航空磁异常探测(MAD)造成影响,导致目标识别的虚警率过高。为了降低虚警率,需要将地磁背景场从飞机探测的磁场中剥离出来。文中使用的地磁背景场通过船磁测量获得。但是MAD和船磁测量不在同一个高度/平面内,需要通过磁法向上延拓的方法,将船测磁场向上延拓到飞机飞行高度。基于海上磁测数据,通过磁法向上延拓的方法,获得飞机飞行平面内的地磁背景场,然后将实际飞行的磁测数据减去地磁背景场来完成地磁匹配,最终达到降低MAD信号识别输出虚警的目的。
|
| 关 键 词： | 磁力测量 地磁背景场 信号识别 磁法延拓 地磁匹配 |
Application of Magnetic Continuation in Geomagnetic Background Field Matching |
| |
| WANG Jingran,ZHANG Qiguo,GU Jiansong,ZHENG Jun.Application of Magnetic Continuation in Geomagnetic Background Field Matching[J].Hydrographic Surveying and Charting,2015,35(3):36-38. |
| |
| Authors: | WANG Jingran ZHANG Qiguo GU Jiansong ZHENG Jun |
| |
| Institution: | 71 5.th Research Institute of China Shipbuilding Industry Corporation,Hangzhou 311400 ,China;92899 Troops,Ningbo 315200 ,China |
| |
| Abstract: | The signal recognition of the magnetic anomaly detection ( MAD) was affected by the complexmagnetic background field,which can cause false alarms,especially In the offshore region.In this paper,theupward continuation method was used to the magnetic data surveyed on the sea,and the geomagnetic backgroundfield of the flight altitude was obtained.And then the geomagnetic matching was completed through the actualflight magnetic survey data minus the geomagnetic background field,eventually to try to eliminate or reduce theinterference of background field in MAD signal recognition and reduce false alarms. |
| |
| Keywords: | magnetic surveying magnetic background field signal recognition magnetic continuation geomagnetic matching |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《海洋测绘》浏览原始摘要信息 |
| 点击此处可从《海洋测绘》下载免费的PDF全文 |
|
