How to change the resolution of a spectrogram?

5 ビュー (過去 30 日間)
Sultan Al-Hammadi
Sultan Al-Hammadi 2018 年 10 月 24 日
コメント済み: Sultan Al-Hammadi 2018 年 10 月 26 日
I have written a code which used to plot the spectrogram of a signal. This line was to get the spectrogram:
[s,f2,t] = spectrogram(xc,win,noverlap,FFT_LENGTH,fs,'yaxis');
Then I used imagesc to plot the spectrogram: imagesc(t,f2,20*log10(abs(s)));
Everything is working fine except the following thing:
I don't know how to change the scale/resolution for the thing circled by a red line [looks like steps] to make it looks like a straight line (not like steps)? (please see the attached spectrogram)
  2 件のコメント
Jan
Jan 2018 年 10 月 24 日
編集済み: Jan 2018 年 10 月 24 日
Modify the values for win, noverlap and FFT_LENGTH.
Sultan Al-Hammadi
Sultan Al-Hammadi 2018 年 10 月 26 日
that's sounds correct

サインインしてコメントする。

サインインしてこの質問に回答する。

回答 (0 件)

カテゴリ

Help Center および File Exchange で Time-Frequency Analysis についてさらに検索

タグ

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by