The possibility of increasing the efficiency of terahertz absorption spectra noise reduction using a sliding window variant of Savitzky-Golay filter

A. A. Altynbekov; A. V. Borisov; V. E. Skiba; Yu. V. Kistenev

doi:10.1117/12.3009811

2 November 2023 The possibility of increasing the efficiency of terahertz absorption spectra noise reduction using a sliding window variant of Savitzky-Golay filter

A. A. Altynbekov, A. V. Borisov, V. E. Skiba, Yu. V. Kistenev

Author Affiliations +

Proceedings Volume 12920, XVI International Conference on Pulsed Lasers and Laser Applications; 1292013 (2023) https://doi.org/10.1117/12.3009811
Event: XVI International Conference on Pulsed Lasers and Laser Applications, 2023, Tomsk, Russian Federation

Abstract

The possibility of increasing the efficiency of Savitzky–Golay filter for THz absorption spectra noise reduction as a preprocessing step was considered. The studies were carried out on the model atmosphere gas mixtures typical for swampy area. The noisy absorption spectra of the gas mixtures in 0.1-1.0 THz spectral range were calculated using data from HITRAN database. A sliding window variant of Savitzky–Golay filter was proposed and analyzed. The analysis of noise reduction quality was evaluated by the criterion of proximity of two curves. Using Savitzky-Golay filter together with the sliding window method was shown to provide a significant improvement in the noise reduction compared to standard variant of this filter.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

A. A. Altynbekov, A. V. Borisov, V. E. Skiba, and Yu. V. Kistenev "The possibility of increasing the efficiency of terahertz absorption spectra noise reduction using a sliding window variant of Savitzky-Golay filter", Proc. SPIE 12920, XVI International Conference on Pulsed Lasers and Laser Applications, 1292013 (2 November 2023); https://doi.org/10.1117/12.3009811

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available