弱湍流下斜程大气激光通信误码率分析

doi:10.3969/j.issn.1001-2400.2016.01.012

Abstract

Abstract:

Based on the three-layer altitude spectrum, this paper analytically investigates the bit error rate (BER) performance of the slanted laser communication system under the weak turbulence condition. The expressions for BER using on-off keying (OOK) and pulse position modulation (PPM) are derived. An analysis of impacts of the zenith angle, wavelength, power-law index and modulations on BER is made. Theoretical results show that the descriptions of turbulence given by the three-layer altitude spectrum is consistent with the actual situation. With the wavelength decreasing and zenith angle increasing, BER increases. Furthermore, PPM requires less average transmitted power than OOK, which may achieve the aim of saving cost without increasing the error rate in system design.

Key words: slanted laser communication, atmospheric turbulence, three-layer altitude spectrum, irradiance

CLC Number:

TN929.1

JI Yao;YUE Peng;YAN Ruiqing;JU Maoguang. BER performance analysis of the atmospheric laser communication system on the slant path in weak turbulence[J].J4, 2016, 43(1): 66-70.

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BER performance analysis of the atmospheric laser communication system on the slant path in weak turbulence

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