The influence factors and optimization methods of the local oscillator power for coherent doppler lidar

Zhichao Bu; Yinchao Zhang; Siying Chen; Zongjia Qiu; He Chen; Pan Guo; Shengzhe Chen; Xianying Ge

doi:10.1109/RSETE.2011.5964871

The influence factors and optimization methods of the local oscillator power for coherent doppler lidar

Zhichao Bu^*, Yinchao Zhang, Siying Chen, Zongjia Qiu, He Chen, Pan Guo, Shengzhe Chen, Xianying Ge

^*Corresponding author for this work

School of Optics and Photonics

Beijing Institute of Technology

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

2 Citations (Scopus)

Abstract

Coherent doppler lidar for wind is based on the heterodyne detection between local oscillator signal and the echo signal. Optimum optical local oscillator power is an important factor of the signal to noise ratio. The dynamic range of echo signal, the relative intensity noise and the photoelectric detector saturation effect are studied comprehensively as the local oscillator power influence factors for the first time. The expression of the local oscillator power and SNR is derived. Using the computer simulation, the conclusion that the dynamic range of the echo signal will not affect the optimum of the local oscillator is obtained. Selecting different values of the relative intensity noise, the curves of the SNR versus local oscillator are given. Comparing the SNR formula in the quantum limit with the derived SNR formula, the saturation effect of the photoelectric devices is studied.

Original language	English
Title of host publication	2011 International Conference on Remote Sensing, Environment and Transportation Engineering, RSETE 2011 - Proceedings
Pages	2692-2695
Number of pages	4
DOIs	https://doi.org/10.1109/RSETE.2011.5964871
Publication status	Published - 2011
Event	2011 International Conference on Remote Sensing, Environment and Transportation Engineering, RSETE 2011 - Nanjing, China Duration: 24 Jun 2011 → 26 Jun 2011

Publication series

Name	2011 International Conference on Remote Sensing, Environment and Transportation Engineering, RSETE 2011 - Proceedings

Conference

Conference	2011 International Conference on Remote Sensing, Environment and Transportation Engineering, RSETE 2011
Country/Territory	China
City	Nanjing
Period	24/06/11 → 26/06/11

Keywords

Optimum local oscillator power
Range of echo signal
The relative intensity noise
The saturation effect of photoelectric detector

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10.1109/RSETE.2011.5964871

Cite this

Bu, Z., Zhang, Y., Chen, S., Qiu, Z., Chen, H., Guo, P., Chen, S., & Ge, X. (2011). The influence factors and optimization methods of the local oscillator power for coherent doppler lidar. In 2011 International Conference on Remote Sensing, Environment and Transportation Engineering, RSETE 2011 - Proceedings (pp. 2692-2695). Article 5964871 (2011 International Conference on Remote Sensing, Environment and Transportation Engineering, RSETE 2011 - Proceedings). https://doi.org/10.1109/RSETE.2011.5964871

Bu, Zhichao ; Zhang, Yinchao ; Chen, Siying et al. / The influence factors and optimization methods of the local oscillator power for coherent doppler lidar. 2011 International Conference on Remote Sensing, Environment and Transportation Engineering, RSETE 2011 - Proceedings. 2011. pp. 2692-2695 (2011 International Conference on Remote Sensing, Environment and Transportation Engineering, RSETE 2011 - Proceedings).

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title = "The influence factors and optimization methods of the local oscillator power for coherent doppler lidar",

abstract = "Coherent doppler lidar for wind is based on the heterodyne detection between local oscillator signal and the echo signal. Optimum optical local oscillator power is an important factor of the signal to noise ratio. The dynamic range of echo signal, the relative intensity noise and the photoelectric detector saturation effect are studied comprehensively as the local oscillator power influence factors for the first time. The expression of the local oscillator power and SNR is derived. Using the computer simulation, the conclusion that the dynamic range of the echo signal will not affect the optimum of the local oscillator is obtained. Selecting different values of the relative intensity noise, the curves of the SNR versus local oscillator are given. Comparing the SNR formula in the quantum limit with the derived SNR formula, the saturation effect of the photoelectric devices is studied.",

keywords = "Optimum local oscillator power, Range of echo signal, The relative intensity noise, The saturation effect of photoelectric detector",

author = "Zhichao Bu and Yinchao Zhang and Siying Chen and Zongjia Qiu and He Chen and Pan Guo and Shengzhe Chen and Xianying Ge",

year = "2011",

doi = "10.1109/RSETE.2011.5964871",

language = "English",

isbn = "9781424491711",

series = "2011 International Conference on Remote Sensing, Environment and Transportation Engineering, RSETE 2011 - Proceedings",

pages = "2692--2695",

booktitle = "2011 International Conference on Remote Sensing, Environment and Transportation Engineering, RSETE 2011 - Proceedings",

note = "2011 International Conference on Remote Sensing, Environment and Transportation Engineering, RSETE 2011 ; Conference date: 24-06-2011 Through 26-06-2011",

}

Bu, Z, Zhang, Y, Chen, S, Qiu, Z, Chen, H , Guo, P, Chen, S & Ge, X 2011, The influence factors and optimization methods of the local oscillator power for coherent doppler lidar. in 2011 International Conference on Remote Sensing, Environment and Transportation Engineering, RSETE 2011 - Proceedings., 5964871, 2011 International Conference on Remote Sensing, Environment and Transportation Engineering, RSETE 2011 - Proceedings, pp. 2692-2695, 2011 International Conference on Remote Sensing, Environment and Transportation Engineering, RSETE 2011, Nanjing, China, 24/06/11. https://doi.org/10.1109/RSETE.2011.5964871

The influence factors and optimization methods of the local oscillator power for coherent doppler lidar. / Bu, Zhichao; Zhang, Yinchao; Chen, Siying et al.
2011 International Conference on Remote Sensing, Environment and Transportation Engineering, RSETE 2011 - Proceedings. 2011. p. 2692-2695 5964871 (2011 International Conference on Remote Sensing, Environment and Transportation Engineering, RSETE 2011 - Proceedings).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - The influence factors and optimization methods of the local oscillator power for coherent doppler lidar

AU - Bu, Zhichao

AU - Zhang, Yinchao

AU - Chen, Siying

AU - Qiu, Zongjia

AU - Chen, He

AU - Guo, Pan

AU - Chen, Shengzhe

AU - Ge, Xianying

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N2 - Coherent doppler lidar for wind is based on the heterodyne detection between local oscillator signal and the echo signal. Optimum optical local oscillator power is an important factor of the signal to noise ratio. The dynamic range of echo signal, the relative intensity noise and the photoelectric detector saturation effect are studied comprehensively as the local oscillator power influence factors for the first time. The expression of the local oscillator power and SNR is derived. Using the computer simulation, the conclusion that the dynamic range of the echo signal will not affect the optimum of the local oscillator is obtained. Selecting different values of the relative intensity noise, the curves of the SNR versus local oscillator are given. Comparing the SNR formula in the quantum limit with the derived SNR formula, the saturation effect of the photoelectric devices is studied.

AB - Coherent doppler lidar for wind is based on the heterodyne detection between local oscillator signal and the echo signal. Optimum optical local oscillator power is an important factor of the signal to noise ratio. The dynamic range of echo signal, the relative intensity noise and the photoelectric detector saturation effect are studied comprehensively as the local oscillator power influence factors for the first time. The expression of the local oscillator power and SNR is derived. Using the computer simulation, the conclusion that the dynamic range of the echo signal will not affect the optimum of the local oscillator is obtained. Selecting different values of the relative intensity noise, the curves of the SNR versus local oscillator are given. Comparing the SNR formula in the quantum limit with the derived SNR formula, the saturation effect of the photoelectric devices is studied.

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Bu Z, Zhang Y, Chen S, Qiu Z, Chen H , Guo P et al. The influence factors and optimization methods of the local oscillator power for coherent doppler lidar. In 2011 International Conference on Remote Sensing, Environment and Transportation Engineering, RSETE 2011 - Proceedings. 2011. p. 2692-2695. 5964871. (2011 International Conference on Remote Sensing, Environment and Transportation Engineering, RSETE 2011 - Proceedings). doi: 10.1109/RSETE.2011.5964871

The influence factors and optimization methods of the local oscillator power for coherent doppler lidar

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