A Combined Rotational Raman–Rayleigh Lidar for Atmospheric Temperature Measurements Over 5–80 km With Self-Calibration

Li, Yajuan; Lin, Xin; Song, Shalei; Yang, Ye; Cheng, Xuewu; Chen, Zhenwei; Liu, Linmei; Xia, Yuan; Xiong, Jun; Gong, Shunsheng; Li, Faquan

doi:10.1109/tgrs.2016.2594828

Cited by 18 publications

(4 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The method of measuring the vertical distribution of the atmospheric temperature from the lidar signals of purely rotational spontaneous Raman spectra (SRS) of nitrogen and oxygen molecules has significant advantages over other remote methods of temperature measurement [1][2][3][4][5][6][7]. This method makes it possible to carry out actually direct temperature measurements from the population ratio of rotational levels with high accuracy and high space-time resolution [1].…”

Section: Introductionmentioning

confidence: 99%

Estimation of the dynamic range linearity of the SLS lidar photodetection system

Bobrovnikov,

Zharkov,

Trifonov

et al. 2023

29th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics

View full text Add to dashboard Cite

A lidar response simulator has been created that makes it possible to generate an optical signal close in shape and intensity to a real lidar signal in the temperature measurement channels at the main lidar of the Siberian Lidar Station. An experimental evaluation of the linearity range of the photodetection system has been carried out. The paper shows a block diagram of a stand for experimental evaluation of the linearity range of a lidar photodetection system with the ability to synthesize a pulsed optical signal. It is shown that when a signal is recorded in the photon counting mode, nonlinear distortions are observed at an average counting pulse arrival frequency of 2.5 MHz.

show abstract

Section: Introductionmentioning

confidence: 99%

Estimation of the dynamic range linearity of the SLS lidar photodetection system

Bobrovnikov,

Zharkov,

Trifonov

et al. 2023

29th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics

View full text Add to dashboard Cite

show abstract

“…At the Siberian Lidar Station (SLS), a lidar method for measuring the vertical distribution of atmospheric temperature based on the Raman scattering (RS) effect in the altitude range of 0÷40 km has been successfully developed for many years [1][2][3][4][5] . The lidar technology for remote temperature measurement is based on using the known temperature dependence of the intensity of spectral lines of rotational Raman scattering on nitrogen and oxygen molecules.…”

Section: Introductionmentioning

confidence: 99%

Photon counting system with automated detection and selection of photodetector discrimination thresholds

Bobrovnikov

Zharkov²,

Nadeev³

et al. 2022

28th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics

View full text Add to dashboard Cite

The paper considers a block diagram of a photodetection system based on a new version of the four-channel photon counter "PHCOUNT-4" used for precision lidar measurements of atmospheric temperature. The results of using the new capabilities of the analog part of the photon counting system, which makes it possible to automatically record the amplitude distribution of single-electron pulses of each of the photodetectors installed in the channels and determine the optimal discrimination threshold, are described. It is shown that setting the optimal discrimination thresholds makes it possible to achieve a small spread in the end-to-end quantum efficiency of each of the channels

show abstract

“…The simplest way to measure the vertical distribution profile of atmospheric temperature on lidar complexes is the Rayleigh scattering effect associated with the retrieval of the atmospheric molecular density profile and subsequent conversion to temperature, which is justified under the assumption of hydrostatic equilibrium of the atmosphere [1][2][3][4][5] . Despite the apparent technical simplicity of the method, weak dependence of the scattering coefficient on temperature imposes strict requirements on the permissible distortions of the lidar response shape.…”

Section: Introductionmentioning

confidence: 99%

Possibility of recording the unbiased scatter lidar signals in the altitude range of 30÷100 km on the main SLS lidar

Bobrovnikov

Gorlov

Zharkov

et al. 2022

28th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics

View full text Add to dashboard Cite

The paper discusses the problem of ensuring the linearity of photo registration of the lidar signal of molecular scattering on the main lidar of the Siberian lidar station (SLS) based on a unique mirror with a diameter of 2.2 m. To reduce the dynamic range of signal changes, it is proposed to use a mechanical shutter based on a disk obturator to cut off the near zone of the lidar signal in the altitude range of 0÷30 km. A high-speed brushless motor was used as an obturator driver. The synchronization signal was generated by a Hall sensor. Bench and full-scale tests of the obturator were carried out. It is shown that the error of the Hall sensor does not affect the delay and duration of the shutter opening.

show abstract

A Combined Rotational Raman–Rayleigh Lidar for Atmospheric Temperature Measurements Over 5–80 km With Self-Calibration

Cited by 18 publications

References 38 publications

Estimation of the dynamic range linearity of the SLS lidar photodetection system

Estimation of the dynamic range linearity of the SLS lidar photodetection system

Photon counting system with automated detection and selection of photodetector discrimination thresholds

Possibility of recording the unbiased scatter lidar signals in the altitude range of 30÷100 km on the main SLS lidar

Contact Info

Product

Resources

About