PPM调制光纤耦合多孔径接收系统性能研究

李康宁; 冯旭; 高建文; 马晶

doi:10.11959/j.issn.2096-8930.2021021

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PPM调制光纤耦合多孔径接收系统性能研究

专题：天地一体化信息网络传输技术 | 更新时间：2024-06-03

- PPM调制光纤耦合多孔径接收系统性能研究
- Research on Performance of Fiber-Based Multiple Apertures Receiver System with PPM Modulation
- 天地一体化信息网络 2021年2卷第2期页码：62-68
- 作者机构：
  
  1. 中国电子科学研究院，北京 100041
  2. 哈尔滨工业大学，黑龙江哈尔滨 150001
- 作者简介：
  
  [ "李康宁（1986-），中国电子科学研究院高级工程师，主要研究方向为空间激光通信" ]
  [ "冯旭（1987-），中国电子科学研究院高级工程师，主要研究方向为卫星通信网络" ]
  [ "高建文（1987-），中国电子科学研究院高级工程师，主要研究方向为空间通信技术" ]
  [ "马晶（1956-），男，光学专业，哈尔滨工业大学航天学院教授，博士生导师，空间光通信技术研究中心主任，可调谐激光技术国家级重点实验室主任，主要研究方向为卫星光通信、激光干涉计量、光学信息处理、激光全息等" ]
- 基金信息：
- DOI：10.11959/j.issn.2096-8930.2021021
  中图分类号： TN929.13
- 网络出版日期：2021-06，
  
  纸质出版日期：2021-06-20
- 稿件说明：
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李康宁, 冯旭, 高建文, 等. PPM调制光纤耦合多孔径接收系统性能研究[J]. 天地一体化信息网络, 2021,2(2):62-68.

Kangning LI, Xu FENG, Jianwen GAO, et al. Research on Performance of Fiber-Based Multiple Apertures Receiver System with PPM Modulation[J]. Space-integrated-ground information networks, 2021, 2(2): 62-68.
李康宁, 冯旭, 高建文, 等. PPM调制光纤耦合多孔径接收系统性能研究[J]. 天地一体化信息网络, 2021,2(2):62-68. DOI： 10.11959/j.issn.2096-8930.2021021.

Kangning LI, Xu FENG, Jianwen GAO, et al. Research on Performance of Fiber-Based Multiple Apertures Receiver System with PPM Modulation[J]. Space-integrated-ground information networks, 2021, 2(2): 62-68. DOI： 10.11959/j.issn.2096-8930.2021021.

摘要

研究空间激光通信脉冲位置调制（PPM）光纤耦合多孔径接收系统的通信性能，在Gamma-Gamma光强分布大气模型和非中心卡方分布光纤耦合效率分布模型基础上，给出PPM光纤耦合多孔径接收系统经大气链路传输的信噪比和平均误码率表达式。多孔径接收合并方式考虑了选择性合并（SC）、等增益合并（EGC）以及最大比合并（MRC）3种。通过Monte Carlo仿真，对比分析地面链路4PPM调制SC、EGC和MRC光纤耦合多孔径接收系统和等接收面积单孔径接收系统的误码率，对比研究4PPM调制和8PPM调制多孔径接收系统在不同合并方式下的误码率性能。

Abstract

The performance of fi ber-based FSO with multiple apertures receiver system was studied for pulse position modulation (PPM) .Expressions of PPM modulated signal-to-noise ratio (SNR) and bit-error rate (BER) for fi ber-based FSO multiple apertures receiver system were presented based on the probability density function of Gamma-Gamma intencity distribution and non–central chisquare fi ber coupling effi ciency distribution under atmospheric infl uence.Selection combining (SC)

equal gain combining (EGC) and maximum ratio combining (MRC) were considered to be three signal combining methods for multiple apertures receiver system.The BER performance of 4PPM modulted SC

EGC and MRC fi ber-based multiple apertures receiver system and single aperture receiver system with the same total aperture area were comparative analyzed by Monte Carlo simulation.The BER performance of fi ber-based multiple apertures receiver systems in 4PPM and 8PPM modulation modes were directly compared for diff erent combining methods.

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