Prediction of Output SNR of Analog Optic Receiver

NI Nan; SU Guo-bin; LI Zheng; LIU Jian-sheng

Volume 28 Issue 2

Feb. 2002

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Article Contents

Journal of Beijing University of Aeronautics and Astronautics > 2002 > 28(2): 144-148.

NI Nan, SU Guo-bin, LI Zheng, et al. Prediction of Output SNR of Analog Optic Receiver[J]. Journal of Beijing University of Aeronautics and Astronautics, 2002, 28(2): 144-148. (in Chinese)

Citation:

NI Nan, SU Guo-bin, LI Zheng, et al. Prediction of Output SNR of Analog Optic Receiver[J]. Journal of Beijing University of Aeronautics and Astronautics, 2002, 28(2): 144-148. (in Chinese)

NI Nan, SU Guo-bin, LI Zheng, et al. Prediction of Output SNR of Analog Optic Receiver[J]. Journal of Beijing University of Aeronautics and Astronautics, 2002, 28(2): 144-148. (in Chinese)

Citation:

NI Nan, SU Guo-bin, LI Zheng, et al. Prediction of Output SNR of Analog Optic Receiver[J]. Journal of Beijing University of Aeronautics and Astronautics, 2002, 28(2): 144-148. (in Chinese)

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Prediction of Output SNR of Analog Optic Receiver

Beijing University of Aeronautics and Astronautics, Dept. of Electronic Engineering

Received Date: 26 Jun 2000
Publish Date: 28 Feb 2002

Abstract

Abstract

The amplitude-frequency characteristic of transmission function of APD GaAsFET analog optic receiver is usually nonideal in stopband. For this reason, the output Signal Noise Ratio(SNR) is often lowered. A method is proposed to analyze and calculate the lowered output SNR caused by the nonideal stopband characteristic. A quantitative relation is established using a low-band filter, which helps to improve the output SNR. The output noise formula of this paper is universally applicable to APD-GaAsFET analog optic receiver.
- signal-noise ratio,
- transmission characteristics,
- analog transmission systems