36.2.3. Baseline Correction and Filtering

Try these first

1. 1.

   What is baseline correction?

   Hint

   Think about what kind of errors might affect data reliability.

2. 2.

   Why is filtering necessary?

   Hint

   Consider what distractions in data we might need to eliminate.

3. 3.

   What does baseline correction do?

   • Removes drift
   • Increases noise
   • Adds frequency components

   Hint

   Think about what kind of accuracy is needed in measurements.

4. 4.

   True or False: Filtering is used to enhance data clarity by eliminating irrelevant noise.

   • True
   • False

   Hint

   Does noise enhance or hinder understanding?

5. 5.

   Analyze a dataset where significant drift is observed in the ground motion records used in a seismic model. Solution proposed?

   Hint

   How do we visually recognize drift?

6. 6.

   Construct an argument for why both baseline correction and filtering should be implemented together before using seismic records in a critical engineering project.

   Hint

   Reflect on how accuracy is paramount for safety in design.