摘要
分析了地磁场在发生扰动时三轴磁强计记录的变化磁场三分量的相关性,并根据这种相关性提出了利用小波分解的方法消除磁测量中地磁扰动信号的方法。在磁性目标探测中用这种方法可以提取出隐藏在变化地磁场中的弱目标信号。依据实测的地磁场扰动信号做的仿真试验表明该方法是有效的。
The correlativity of three component of geomagnetic disturbance measured by 3 - axes magnetometer is investigated. According to the correlativity, a method based on wavelet decomposition to eliminate the geomagnetic disturbance signal in magnetic measurement is brought forward. Using this method, the faint object signal bided in the geomagnetic disturbance can be extracted. The result of simulation based on real geomagnetic disturbance data indicates that the method is effective.
出处
《探测与控制学报》
CSCD
北大核心
2005年第5期41-43,共3页
Journal of Detection & Control
关键词
地磁扰动
小波变换
磁探测
相关性
geomagnetic disturbance
wavelet transform
magnetic detection
correlativity
