find SNR of a noisy signal.
1 回表示 (過去 30 日間)
古いコメントを表示
i have a noisy signal,can i just use this signal to calculate the snr?if so could somebody tell me what i should do?Thanks in advance
0 件のコメント
回答 (1 件)
Image Analyst
2013 年 9 月 30 日
You need to find the noise, and the signal. You can estimate them if you want, but to get the ratio you need each of them separately.
2 件のコメント
Image Analyst
2013 年 10 月 1 日
You can use conv() to smooth your signal with a box filter. But if you don't know your true signal then you won't know how much to smooth it. I guess you could just eyeball it and go with whatever you think looks good.
smoothedSignal = conv(noisySignal, ones(1, windowWidth)/windowWidth, 'same');
参考
カテゴリ
Help Center および File Exchange で Signal Generation and Preprocessing についてさらに検索
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!