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首页> 外文期刊>IEEE transactions on wireless communications >Achievable Rates and Signal Detection for Photon-Level Photomultiplier Receiver Based on Statistical Non-Linear Model
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Achievable Rates and Signal Detection for Photon-Level Photomultiplier Receiver Based on Statistical Non-Linear Model

机译:基于统计非线性模型的光子级光电倍增管接收器可达到的速率和信号检测

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摘要

We characterize practical optical signal receiver in a wide range of signal intensity for optical wireless communication, from discrete pulse regime to continuous waveform regime. We first propose a statistical non-linear model based on the photomultiplier tube (PMT) multi-stage amplification and Poisson channel, and then derive the optimal and tractable suboptimal duty cycle with peak-power and average-power constraints for on-off key (OOK) modulation in the linear regime. Subsequently, a threshold-based classifier is proposed to distinguish the PMT working regimes based on the non-linear model. Moreover, the performance of mean power detection and photon counting detection under maximum likelihood (ML) criterion for the sampling interval shorter than dead time is evaluated from both theoretical and numerical perspectives. The proposed model can be adopted to select the optimal duty cycle and analyze the detection performance of PMT output signal in real applications.
机译:我们在从无线信号到离散波形到连续波形的广泛的信号强度范围内,对实用的光信号接收器进行了表征。我们首先提出一个基于光电倍增管(PMT)多级放大和泊松通道的统计非线性模型,然后得出具有开关键的峰值功率和平均功率约束的最优且可处理的次优占空比( OOK)线性模式中的调制。随后,提出了一种基于阈值的分类器,以基于非线性模型来区分PMT工作方式。此外,从理论和数值两个角度评估了在最大似然(ML)准则下比死区时间短的采样间隔下的平均功率检测和光子计数检测的性能。该模型可用于选择最佳占空比,并在实际应用中分析PMT输出信号的检测性能。

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