5.2. Noise

Try these first

1. 1.

   Define noise in the context of data collection.

   Hint

   Think of something that can obscure or distort a signal.

2. 2.

   What is Signal-to-Noise Ratio?

   Hint

   It's a ratio that helps us understand the quality of the signal.

3. 3.

   What is the purpose of calculating Signal-to-Noise Ratio?

   • To measure data spread
   • To compare signal strength to noise
   • To analyze data trends

   Hint

   Think about the main elements involved in SNR.

4. 4.

   True or False: Noise can only be random.

   • True
   • False

   Hint

   Remember the two types of noise discussed.

5. 5.

   You are collecting soil moisture data using a sensor, but you notice that your SNR is low (1:1). What steps would you take to improve the SNR?

   Hint

   Consider both physical and software-based methods to increase the clarity of your data.

6. 6.

   In a civil engineering project, you collected strain measurements but found drastic variations due to noise. Discuss the implications and propose solutions.

   Hint

   Think about the importance of accurate data for structural safety.