The Performance Analysis for PPM System based on Photon-Counting Detector Arrays

XIANG Jin-song; DENG Chen-hui; JIANG Hao; WANG Ju

doi:10.13756/j.gtxyj.2017.02.008

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The Performance Analysis for PPM System based on Photon-Counting Detector Arrays

- The Performance Analysis for PPM System based on Photon-Counting Detector Arrays
- Study on Optical communication Issue 2, Pages: 27-29(2017)
- 作者机构：
  
  重庆邮电大学光纤通信技术重点实验室
- 作者简介：
- 基金信息：
- DOI：10.13756/j.gtxyj.2017.02.008
  CLC： TN929.1
- Published：2017，
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[1]向劲松,邓晨辉,蒋豪,王举.基于光子探测阵列的PPM系统误码性能分析[J].光通信研究,2017(02):27-29+53.

XIANG Jin-song, DENG Chen-hui, JIANG Hao, et al. The Performance Analysis for PPM System based on Photon-Counting Detector Arrays. [J]. Study on Optical communication (2):27-29(2017)
[1]向劲松,邓晨辉,蒋豪,王举.基于光子探测阵列的PPM系统误码性能分析[J].光通信研究,2017(02):27-29+53. DOI： 10.13756/j.gtxyj.2017.02.008.

XIANG Jin-song, DENG Chen-hui, JIANG Hao, et al. The Performance Analysis for PPM System based on Photon-Counting Detector Arrays. [J]. Study on Optical communication (2):27-29(2017) DOI： 10.13756/j.gtxyj.2017.02.008.

摘要

现有的PPM（脉冲位置调制）误码率表达式无法准确分析光子探测器阵列接收的PPM通信系统误码性能。文章基于泊松信道模型

考虑各光子探测器单元在一个PPM时隙内探测到一个光子产生一个电脉冲后不再响应该时隙内其余到达光子的情况

对探测器阵列合成输出信号作最大似然判决

得出了修正后的误码率表达式

并通过蒙特卡洛仿真验证其正确性。结果表明:修正的误码率表达式可准确体现光子探测器阵列接收PPM信号系统误码性能。利用该式可对探测器阵元数目进行优化。

Abstract

So far the formula for bit error rate of PPM cannot accurately analyze the performance of the PPM communication system when photon-counting detector arrays are used as receivers.In this paper

a revised representation formulation is derived based on Poisson channel.Firstly

we consider the situation when a photon is incident on a single photon-counting detector and an electrical is produced in response to that photon

and this detector can no long continue to probe the other photons in this time slot.Then according to the maximum likelihood detection

the synthetic signal of detector arrays output is manipulated into the formula.Finally

the MonteCarlo method is used to support our model and the results indicate that the modified expression is an accurate computation for the bit-error probability of M-ary PPM when the detector arrays are used.Furthermore

this equation can be used to optimize the number of detector arrays.

关键词

空间光通信脉冲位置调制光子探测器阵列泊松信道

Keywords

space optical communicationPPMphoton counting detector arraypoisson channel

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