find SNR of a noisy signal.
조회 수: 1 (최근 30일)
이전 댓글 표시
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
댓글 수: 0
답변 (1개)
Image Analyst
2013년 9월 30일
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.
댓글 수: 2
Image Analyst
2013년 10월 1일
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');
참고 항목
카테고리
Help Center 및 File Exchange에서 Signal Generation and Preprocessing에 대해 자세히 알아보기
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!