Paper
13 November 2014 Theory research on performance of high-speed random bitstream ranging system based on single-photon counting
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Abstract
This paper investigates the random bitstream ranging model and proposes a new output SNR model based on statistical optics theory. We study the relationship of SNR and the fraction of 1 in bitstream with different dead time by Monte Carlo simulation. Theory model is almost consistent with Monte Carlo simulation. The results show that with the fraction of randomly distributed 1-bits in transmitted pattern increased, the system SNR gets better first and then gets worse. Best pattern of transmitted bit stream according to different dead time leads to the best SNR. According to new output SNR model, low dead time brings better SNR. The system SNR increases firstly then gets down with the growing signal photon counts. At last, Gaussian distribution timing jitter of 440ps FWHM is introduced to reconstruct received bitstream pattern formed from the arrival times of returning single photon. We find that higher rate of bitstream brings higher possibility error of single time value. Suitable bits rate is restricted to 1 GHz according to jitter of 440ps FWHM to reduce the probability of ranging error.
© (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Shanshan Shen, Qian Chen, Weiji He, and Huidong Dai "Theory research on performance of high-speed random bitstream ranging system based on single-photon counting", Proc. SPIE 9279, Real-time Photonic Measurements, Data Management, and Processing, 92790Y (13 November 2014); https://doi.org/10.1117/12.2068732
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KEYWORDS
Signal to noise ratio

Monte Carlo methods

Photon counting

Ranging

Interference (communication)

Signal detection

Time correlated photon counting

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