Finding signal to noise ratio
4 次查看(过去 30 天)
显示 更早的评论
采纳的回答
Sven
2014-5-8
编辑:Sven
2014-5-8
Hi Tinkul, does this help you out? I assume that the values you gave are already in your desired units (although true SNR is based on power of signals, not necessarily the signals themselves)
signal = [34;56;12;87;35]
response = [ 33.88;55;11.11;86.77;34.99]
noise = response - signal
rawratio = signal ./ abs(noise)
snr = 10*log10(rawratio)
ans =
24.5230
17.4819
11.2979
25.7779
35.4407
This shows that in your observations the signal is in the order of hundreds of times greater than the noise between true and measured response (in the rawratio variable). Signal-to-noise ratio is often (usually) given in decibels (db) which is 10log10(signal/noise)
更多回答(0 个)
另请参阅
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!