17.5. Data Processing Techniques in SHM

Try these first

1. 1.

   What does FFT stand for in signal processing?

   Hint

   Think of frequency analysis.

2. 2.

   Name one advantage of the Wavelet Transform.

   Hint

   Remember that it helps detect changes at different scales.

3. 3.

   What is the primary purpose of signal processing in SHM?

   • To extract features
   • To enhance and analyze data
   • To display data

   Hint

   Think about how we interpret sensor information.

4. 4.

   True or False: Wavelet Transform allows for multi-resolution analysis.

   • True
   • False

   Hint

   Consider its ability to adjust analysis depending on signal characteristics.

5. 5.

   Design an automated SHM system that uses both FFT and neural networks. Outline its key components and workflow.

   Hint

   Think of the flow of data from collection to alert generation.

6. 6.

   Provide a detailed explanation of the differences between FFT and Wavelet Transform with practical examples.

   Hint

   Use concrete examples, such as how each method would reveal different information about vibration data.