{"title":"Estimation of Signal-to-Noise Ratio from Pulsed Coherent Doppler Lidar Measurements under Nonstationary Noise","authors":"I. N. Smalikho, V. A. Banakh, A. M. Sherstobitov","doi":"10.1134/S1024856024700581","DOIUrl":null,"url":null,"abstract":"<p>Signal-to-noise ratio (SNR) is a key factor determining the accuracy of pulsed coherent Doppler lidar (PCDL) wind speed measurements. Therefore, information about SNR is important for interpreting measurement results. However, known approaches to determining SNR from PCDL raw data are not applicable to the case of the pulsed coherent Doppler lidar created at the Wave Propagation Laboratory of the Institute of Atmospheric Optics, Siberian Branch, Russian Academy of Sciences, (WPL PCDL) due to significant nonstationarity of the noise component of recorded signals. In this work, a new technique for estimating the signal-to-noise ratio from PCDL measurements accounting for noise nonstationarity is developed. The technique was tested in an experiment with a Stream Line PCDL and the WPL PCDL. The practical applicability of the suggested technique is confirmed by comparing SNR estimates from joint measurements by these lidars.</p>","PeriodicalId":46751,"journal":{"name":"Atmospheric and Oceanic Optics","volume":null,"pages":null},"PeriodicalIF":0.9000,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Atmospheric and Oceanic Optics","FirstCategoryId":"1085","ListUrlMain":"https://link.springer.com/article/10.1134/S1024856024700581","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"OPTICS","Score":null,"Total":0}
引用次数: 0
Abstract
Signal-to-noise ratio (SNR) is a key factor determining the accuracy of pulsed coherent Doppler lidar (PCDL) wind speed measurements. Therefore, information about SNR is important for interpreting measurement results. However, known approaches to determining SNR from PCDL raw data are not applicable to the case of the pulsed coherent Doppler lidar created at the Wave Propagation Laboratory of the Institute of Atmospheric Optics, Siberian Branch, Russian Academy of Sciences, (WPL PCDL) due to significant nonstationarity of the noise component of recorded signals. In this work, a new technique for estimating the signal-to-noise ratio from PCDL measurements accounting for noise nonstationarity is developed. The technique was tested in an experiment with a Stream Line PCDL and the WPL PCDL. The practical applicability of the suggested technique is confirmed by comparing SNR estimates from joint measurements by these lidars.
期刊介绍：
Atmospheric and Oceanic Optics is an international peer reviewed journal that presents experimental and theoretical articles relevant to a wide range of problems of atmospheric and oceanic optics, ecology, and climate. The journal coverage includes: scattering and transfer of optical waves, spectroscopy of atmospheric gases, turbulent and nonlinear optical phenomena, adaptive optics, remote (ground-based, airborne, and spaceborne) sensing of the atmosphere and the surface, methods for solving of inverse problems, new equipment for optical investigations, development of computer programs and databases for optical studies. Thematic issues are devoted to the studies of atmospheric ozone, adaptive, nonlinear, and coherent optics, regional climate and environmental monitoring, and other subjects.
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