根据维纳滤波和格林等价层原则导出了一种新型滤波转换函数,应用该函数可进行上行和下行延 拓,以增强位场数据。新提出的转换函数称为优先延拓算子。与常规延拓算子不同,优选延拓算子的延拓响应是在观测的位场傅里叶振幅谱的某一特定频带面优先起作用,转换函数响应近似于远离该频带的全通滤波响应。这种响应特征至少能有效应用于两种常 A new type of filter transfer function is derived based on the principle of Wiener filter and Green’s equivalence layer. The function can be used for both uplink and downlink extension to enhance the field data. The newly proposed transfer function is called priority extension operator. Unlike the conventional continuation operator, the continuation response of the continuation operator is preferentially effective on a particular frequency band of the Fourier domain of the observed field. The transfer function response approximates an all-pass filter that is farther away from the frequency band response. This response characteristic can be applied effectively to at least two kinds of situations