Of Poles and Zeros

1. Front Matter

   Pages i-xi

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2. Introduction

   • Frank Scherbaum

   Pages 1-11

3. RC Filter

   • Frank Scherbaum

   Pages 12-38

4. General linear time invariant systems

   • Frank Scherbaum

   Pages 39-47

5. The seismometer

   • Frank Scherbaum

   Pages 48-65

6. The sampling process

   • Frank Scherbaum

   Pages 66-70

7. Analog-to-digital conversion

   • Frank Scherbaum

   Pages 71-89

8. From infinitely continuous to finite discrete

   • Frank Scherbaum

   Pages 90-111

9. The digital anti-alias filter

   • Frank Scherbaum

   Pages 112-131

10. Inverse and simulation filtering of digital seismograms

    • Frank Scherbaum

    Pages 132-160

11. The measurement of wavelet parameters from digital seismograms

    • Frank Scherbaum

    Pages 161-198

12. Back Matter

    Pages 199-257

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Digital signal processing has become an integral part of observational seismology. Seismic waveforms and the parameters commonly extracted from them are strongly influenced by the effects of numerous filters, both within the earth and within the recording system. With the advent of numerous software tools for the processing of digital seismograms, seismologists have unprecedented power in extracting information from seismic records. These tools are often based on sophisticated theoretical aspects of digital signal processing which, to be used properly, need to be understood. This book is aimed at observational seismologists and students in geophysics trying to obtain a basic understanding of those aspects of digital signal processing that are relevant to the interpretation of seismograms. It covers the basic theory of linear systems, the design and analysis of simple digital filters, the effect of sampling and A/D conversion, the calculation of `true ground motion', and the effects of seismic recording systems on parameters extracted from digital seismograms. It contains numerous examples and exercises together with their solutions.

• digital signal processing
• filtering
• geophysics
• signal processing
• wavelet

• Institut für Allgemeine und Angewandte Geophysik, Ludwig-Maximilians-Universität München, Germany

  Frank Scherbaum

Policies and ethics