5.3. Signal-to-Noise Ratio

Try these first

1. 1.

   What does SNR stand for?

   Hint

   Think about the clarity of a signal.

2. 2.

   What would a higher SNR indicate?

   Hint

   Higher is better for clarity!

3. 3.

   What does a higher SNR indicate?

   • More noise
   • Clearer signals
   • Weaker signal

   Hint

   Remember, higher is better for clarity.

4. 4.

   SNR is a measure of what?

   • True
   • False

   Hint

   Think about what SNR represents.

5. 5.

   A testing device measures a sound level of 70 dB with a background noise level of 20 dB. Calculate the SNR and assess the reliability of data collection in this context.

   Hint

   Use the SNR definition to analyze the scenario.

6. 6.

   Consider a civil engineering scenario where a sensor detects structural vibrations. If the noise level is much higher due to heavy machinery nearby, what steps would you recommend to enhance SNR?

   Hint

   Think about practical methods to improve data quality.