Temperature characteristics at altitudes of 5–80 km with a self-calibrated Rayleigh–rotational Raman lidar: A summer case study

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

doi:10.1016/j.jqsrt.2016.05.007

Cited by 13 publications

(2 citation statements)

References 24 publications

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“…With increasing demand for a high spectral resolution and advancements in filter technology, interference filters with very narrow transmission bandwidths have gained significant attention. These filters, known as narrow-band interference filters, have found applications in pure rotational Raman lidar [ 12 , 13 , 14 , 15 ], astronomical narrow-band imaging observations [ 16 , 17 , 18 , 19 ], and other fields. The transmission function of narrow-band interference filters directly influences the accuracy and precision of the data inversion results.…”

Section: Introductionmentioning

confidence: 99%

Online Testing Method for the Fine Spectral Characteristics of Narrow-Band Interference Filters Based on a Narrow-Linewidth Tunable Laser

Ji,

Yang,

Lin

et al. 2024

Sensors

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The transmission spectrum of a narrow-band interference filter is crucial and highly influenced by factors such as the temperature and angle, thus requiring precise and online measurements. The traditional method of measuring the transmission spectrum of an interference filter involves the use of a spectrometer, but the accuracy of this method is limited. Moreover, placing a narrow-band interference filter inside a spectrometer hinders real-time online measurements. To address this issue, there is demand for high-precision online spectral testing methods. In response to this demand, we propose and experimentally validate a fine spectral characterization method for narrow-band interference filters. This method uses a narrow-linewidth tunable laser, achieving a spectral resolution in the MHz range for online testing. Two types of narrow-band interference filters were tested using the constructed laser spectroscopy experimental system, obtaining a transmission spectrum with a spectral resolution of 318 MHz. In comparison to spectrometer-based methods, our proposed method demonstrates higher spectral accuracy, enables online measurements, and provides more accurate measurements for special spectral interference filters. This approach has significant application value and promising development prospects.

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Section: Introductionmentioning

confidence: 99%

Online Testing Method for the Fine Spectral Characteristics of Narrow-Band Interference Filters Based on a Narrow-Linewidth Tunable Laser

Ji,

Yang,

Lin

et al. 2024

Sensors

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“…In addition, sensitive observations of atmospheric wind and temperature have great practical value for improving the accuracy of environmental prediction, ensuring aerospace safety, and achieving a higher satellite launch success rate. For a long time, the detection of atmospheric wind and temperature has been largely restricted to ground-based remote sensing technologies, such as Doppler wind light detection and ranging (LIDAR) [6], Raman temperature LIDAR [7], meteor radar [8], and airglow imaging interferometer [9]. The continuous development of space technology creates favorable conditions for observing wind and temperature from satellites.…”

Section: Introductionmentioning

confidence: 99%

The Near-Space Wind and Temperature Sensing Interferometer: Forward Model and Measurement Simulation

Feng

et al. 2019

Remote Sensing

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Wind and temperature observation in near space has been playing an increasingly important role in atmospheric physics and space science. This paper reports on the near-space wind and temperature sensing interferometer (NWTSI), which employs a wide-angle Michelson interferometer to observe O2(a1Δg) dayglow near 1.27 μm from a limb-viewing satellite, and presents the instrument modeling and observation simulations from the stratosphere to the mesosphere and lower thermosphere. The characteristics of atmospheric limb-radiance spectra and line selection rules are described. The observational strategy of using two sets of three emission lines with a line-strength difference of one order of magnitude is proved to be suitable for extending altitude coverage. The forward modeling and measurement simulation of the expected NWTSI observations are provided, and the measurement uncertainty of the wind and temperature is discussed. The signal-to-noise ratio (SNR) and the limb-view weight work together to affect the precision of the wind and temperature measurements. The simulated results indicate a wind measurement precision of 1 to 3 m/s and a temperature precision of 1 to 3 K over an altitude range from 40 to 80 km, which meets the observing requirement in measurement precision for near-space detection.

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Comparative analysis of calibration functions in the pure rotational Raman lidar technique

Gerasimov

2018

Appl. Phys. B

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Temperature characteristics at altitudes of 5–80 km with a self-calibrated Rayleigh–rotational Raman lidar: A summer case study

Cited by 13 publications

References 24 publications

Online Testing Method for the Fine Spectral Characteristics of Narrow-Band Interference Filters Based on a Narrow-Linewidth Tunable Laser

Online Testing Method for the Fine Spectral Characteristics of Narrow-Band Interference Filters Based on a Narrow-Linewidth Tunable Laser

The Near-Space Wind and Temperature Sensing Interferometer: Forward Model and Measurement Simulation

Comparative analysis of calibration functions in the pure rotational Raman lidar technique

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