Time Series and Spectral Analysis - York University · Time Series and Spectral Analysis Lecture...

7
Time Series and Spectral Analysis Lecture Thirteen Filtering in Frequency Domain Geophysical Data Processing EATS4020.03 Q. Cheng

Transcript of Time Series and Spectral Analysis - York University · Time Series and Spectral Analysis Lecture...

Page 1: Time Series and Spectral Analysis - York University · Time Series and Spectral Analysis Lecture Thirteen Filtering in Frequency Domain Geophysical Data Processing EATS4020.03 Q.

Time Series and Spectral Analysis

Lecture ThirteenFiltering in Frequency DomainGeophysical Data Processing

EATS4020.03 Q. Cheng

Page 2: Time Series and Spectral Analysis - York University · Time Series and Spectral Analysis Lecture Thirteen Filtering in Frequency Domain Geophysical Data Processing EATS4020.03 Q.

EATS4020.03 Q. Cheng

Differentiation and Integration Filters

Continuation of Potential Fields

Page 3: Time Series and Spectral Analysis - York University · Time Series and Spectral Analysis Lecture Thirteen Filtering in Frequency Domain Geophysical Data Processing EATS4020.03 Q.

EATS4020.03 Q. Cheng

First Order Derivative

Page 4: Time Series and Spectral Analysis - York University · Time Series and Spectral Analysis Lecture Thirteen Filtering in Frequency Domain Geophysical Data Processing EATS4020.03 Q.

EATS4020.03 Q. Cheng

Second Order Derivative

Page 5: Time Series and Spectral Analysis - York University · Time Series and Spectral Analysis Lecture Thirteen Filtering in Frequency Domain Geophysical Data Processing EATS4020.03 Q.

EATS4020.03 Q. Cheng

Combination of Low- and High- Pass Filters

Low- and Second Order Vertical Derivative Filters

⎪⎩

⎪⎨⎧ >

=otherwisef

fiffF c

,

2,0)(

2λπ

Page 6: Time Series and Spectral Analysis - York University · Time Series and Spectral Analysis Lecture Thirteen Filtering in Frequency Domain Geophysical Data Processing EATS4020.03 Q.

EATS4020.03 Q. Cheng

Combination of Low- and High- Pass Filters

Continuation and Second Order Vertical Derivative Filters

zfeffF −= 2)(

Page 7: Time Series and Spectral Analysis - York University · Time Series and Spectral Analysis Lecture Thirteen Filtering in Frequency Domain Geophysical Data Processing EATS4020.03 Q.

Applications of Applications of GeoDataGeoData Analysis System (Analysis System (GeoDASGeoDAS) ) for Mineral Exploration in Ontario: for Mineral Exploration in Ontario:

Data processing, Information Extraction and Data processing, Information Extraction and Analysis of Mineral ResourcesAnalysis of Mineral Resources PotentialPotential

QiumingQiuming ChengCheng11, Graeme Bonham, Graeme Bonham--CarterCarter22, , AlirezaAlireza PanahiPanahi11, , James ZhengJames Zheng22, , ShengyuanShengyuan ZhangZhang11, , QingmouQingmou LiLi11, , LinghaiLinghai JinJin11, ,

ZhijinZhijin WangWang11

1. York University1. York University2. Geological Survey of Canada2. Geological Survey of Canada


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