In a communication system, what does 'signal-to-noise ratio' (SNR) measure?
Practice Questions
1 question
Q1
In a communication system, what does 'signal-to-noise ratio' (SNR) measure?
The strength of the signal relative to background noise
The total power of the signal
The bandwidth of the communication channel
The efficiency of the modulation technique
Signal-to-noise ratio (SNR) measures the strength of the signal relative to the background noise, indicating the quality of the communication.
Questions & Step-by-step Solutions
1 item
Q
Q: In a communication system, what does 'signal-to-noise ratio' (SNR) measure?
Solution: Signal-to-noise ratio (SNR) measures the strength of the signal relative to the background noise, indicating the quality of the communication.
Steps: 5
Step 1: Understand that a 'signal' is the information we want to send, like a voice or data.
Step 2: Recognize that 'noise' is any unwanted interference that can distort or hide the signal, like static on a phone call.
Step 3: Realize that 'signal-to-noise ratio' (SNR) compares the strength of the signal to the strength of the noise.
Step 4: Know that a higher SNR means the signal is much stronger than the noise, which usually means better quality communication.
Step 5: Conversely, a lower SNR means the noise is closer in strength to the signal, which can lead to poor communication quality.
