Preface. Foreword; Eric Bergman. 1. Introduction. 2. RC Filter. 3. General Linear Time Invariant Systems. 4. The Seismometer. 5. The Sampling Process. 6. Analog- to-digital Conversion. 7. From Infinitely Continuous to Finite Discrete. 8. The Digital Anti-Alias Filter. 9. Inverse and Simulation Filtering of Digital Seismograms. 10. The Measurement of Wavelet Parameters from Digital Seismograms. References. Appendix: Solution to Problems. Index.