Estimating frequency when there's little isolation between signal and noise frequencies

1. How do you calculate minimum signal-to-noise ratio?
2. What are we measuring with the signal-to-noise ratio?
3. What is frequency estimation?

How do you calculate minimum signal-to-noise ratio?

To calculate the signal-to-noise ratio, you need the level of both the signal and the noise. Then: If you have the signals in decibels (dB), subtract noise from the signal. If your calculations are in watts, use the power signal-to-noise ratio formula SNR = 10 × log(signal / noise) .

What are we measuring with the signal-to-noise ratio?

In analog and digital communications, a signal-to-noise ratio, often written S/N or SNR, is a measure of the strength of the desired signal relative to background noise (undesired signal).

What is frequency estimation?

Frequency estimation as the key technique of signal processing is applied to almost all the engineering technology fields. According to the different frequency components of the signal, frequency estimation methods involving single frequency and intensive frequency are sorted.