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根据重磁异常的能谱和它的自相关函数频谱的关系,文中推导出分离不同宽度和幅度特征的滤波器表达式,给出了一维和二维等轴状异常和非等轴状异常的滤波因子。按照重磁异常不同的相关半径和平均幅值,可以实现对有效异常的识别和提取。理论模型和实际资料处理结果表明,该方法具有地质意义明确、使用灵活和分离精度高的特点。
According to the relationship between the gravimetric anomaly energy spectrum and its autocorrelation function spectrum, the filter expressions for separating different width and amplitude features are deduced. One-dimensional and two-dimensional isometric anomalies and non-equiaxial anomalies are given Filter factor. In accordance with the different relative gravity and magnetic anomaly radius and average amplitude, can identify and extract the effective anomaly. Theoretical model and actual data processing results show that the method has the characteristics of clear geological meaning, flexible use and high separation precision.