17.5.1. Signal Processing

Try these first

1. 1.

   What does FFT stand for?

   Hint

   Think about how signals can be analyzed in terms of frequency.

2. 2.

   What is the purpose of filtering in signal processing?

   Hint

   Ask yourself what gets in the way of clear data.

3. 3.

   What is the purpose of Fast Fourier Transform (FFT)?

   • To convert time domain data into frequency domain
   • To filter noise from a signal
   • To visualize data in 3D

   Hint

   Consider how signals are evaluated in different environments.

4. 4.

   True or False: Wavelet Transform is used for steady signals only.

   • True
   • False

   Hint

   Think about different types of signals we encounter.

5. 5.

   If you had to choose a signal processing technique for a structure that experiences sudden impacts, which one would you use and why?

   Hint

   Focus on the characteristics of the signal.

6. 6.

   Analyze why choosing an inappropriate filtering technique could lead to structural misdiagnosis.

   Hint

   Consider the relationship between the signal and the chosen filter type.