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Screensize: 640 x 480 800 x 600 1024 x 768 1280 x 1024 UserName: Password: Anti-Spam Code: Format Mode: Basic  Help  Prompt  Format: Font Andale Mono Arial Arial Black Book Antiqua Century Gothic Comic Sans MS Courier New Georgia Impact Lucida Console Script MT Bold Stencil Tahoma Times New Roman Trebuchet MS Verdana   Size 1 2 3 4 5 6   Color Black Red Yellow Pink Green Orange Purple Blue Beige Brown Teal Navy Maroon LimeGreen Message: * HTML is OFF * Forum Code is ON Smilies [quote][i]Originally posted by JannieT[/i] [br]I have 2 Terahertz Reflection Spectroscopy Time Domain Signal- reference and sample signal. And would like to remove noise in the signal for further analysis. I have tried various smoothing method and wavelet denoise method to remove noise in https://www.originlab.com/doc/Tutorials/Smoothing. However, it is either the noise is not removed or the signal becomes distorted. Is there other wavelet method or any other method where I can remove noise without minimum distortion to my signals? Below are the picture of the 2 signals that I have Reference Signal [img]http://www.originlab.com/ftp/forum_and_kbase/Images/C1__.JPG[/img] Sample Signal [img]http://www.originlab.com/ftp/forum_and_kbase/Images/C12.___.JPG[/img] Any help will be deeply appreciated. Thank you! [/quote]   Check here to include your profile signature. Check here to subscribe to this topic.