沉积与特提斯地质Issue(1)：108-112,5.
基于解析信号振幅识别磁源体边界的分析解释方法
Analysis and interpretation of magnetic anomalies based on the analytic signal amplitudes
吴文贤 1王永华 1吴振波 1杨剑 1焦彦杰 1邓珂1
作者信息
- 1. 成都地质矿产研究所，四川 成都 610081
- 折叠
摘要
Abstract
The analytic signals are essentially a kind of all-pass filters. Since not suffering from the disturbation by human factors,they may perfectly reflect the information of the original signals. The analytic signal amplitude method is not only an effective method to analyze non-stationary signals,but also a powerful tool to detect the local characteristics of signals. In this paper,the complex signals are received from the real signals by the analytic signals,and the spatial distribution of the signal energy can be depicted from the amplitudes(spectrum)of the complex signals. Model tests indicate that the analytic signal amplitude method may reduce the false anomalies in some low degree of exploration regions,and cause the central locations of the underground magnetic bodyies and spectrums to be identical. This method is especially of more advantages in low-latitude or highly dissected areas. With the aid of this method in the measurement of magnetic anomalies of an iron ore district in Palishan,Laos,we delineated the distribution of the underground magnetite orebodies,and the reliability of the results has been proved by the data from 56 boreholes there.关键词
解析信号振幅/磁源体边界/磁异常/老挝爬立山铁矿区Key words
analytic signal amplitude/magnetic anomaly/iron ore district in Palishan,Laos分类
天文与地球科学引用本文复制引用
吴文贤,王永华,吴振波,杨剑,焦彦杰,邓珂..基于解析信号振幅识别磁源体边界的分析解释方法[J].沉积与特提斯地质,2014,(1):108-112,5.
