【摘 要】
：
以高温超导量子干涉器(HTc SQUID)为基础的磁强计(梯度计)因其具有噪声低、低频响应好、工作带宽大而广泛应用于地质勘探、航空磁探、水中磁性目标探测定位、地磁导航等磁异
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以高温超导量子干涉器(HTc SQUID)为基础的磁强计(梯度计)因其具有噪声低、低频响应好、工作带宽大而广泛应用于地质勘探、航空磁探、水中磁性目标探测定位、地磁导航等磁异常探测(MAD)领域.主磁异常信号因其混合在地磁场背景噪声、海洋环境噪声、载体本体噪声中而显得十分微弱,因此极低信噪比条件下的微弱磁信号检测及提取显得尤为重要.
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