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Complex Demodulation Amplitude Plot Top Prev Next
Sample complex demodulation amplitude plot

  • Question:
    Is the amplitude (at a given frequency) constant?

  • Definition:
    Vertical Axis: Amplitude
    Horizontal Axis: Time

  • Interpretation/Conclusion:
    The amplitude is fixed at approximately 390
    There is a start-up effect
    There is a change in amplitude at around x = 160 (outlier?)

  • NIST/SEMATECH Handbook Chapter:
    1. Exploratory Data Analysis

  • Reference:
    Granger and Hatanaka (1964), Spectral Analysis of Economic Time Series, Princeton University Press.

Dataplot Command: COMPLEX DEMODULATION AMPLITUDE PLOT Y X
Dataplot Code:
SKIP 25
READ LUTHER.DAT Y
SPECTRUM Y
DEMODULATION FREQUENCE .3
COMPLEX DEMODULATION AMPLITUDE PLOT Y

Dataplot Reference Manual Documentation for COMPLEX DEMODULATION AMPLITUDE PLOT

Date created: 06/05/2001
Last updated: 02/13/2023
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