A joint algorithm based on photon heterodyne detection

Weijie Ge; Jianfeng Sun; Wei Lu; Rupeng Zhang; Xin Zhou

doi:10.1016/j.infrared.2023.104928

A joint algorithm based on photon heterodyne detection

Weijie Ge
, Jianfeng Sun^*
, Wei Lu
, Rupeng Zhang
, Xin Zhou

^*Corresponding author for this work

School of Astronautics

Harbin Institute of Technology

Research output: Contribution to journal › Article › peer-review

Abstract

The photonic heterodyne detection system, which has both the anti-interference advantage of the heterodyne detection and the detection sensitivity at the photon level, is widely used in the detection of long-range non-cooperative targets. In this paper, a joint algorithm is proposed to improve the signal-to-noise ratio (SNR) of the system for the problem of low SNR in remote target detection. Firstly, the photon arrival sequences with initial phases in the range of (-π/4, π/4) are coherently accumulated, and then the autocorrelation algorithm is used to obtain the final power spectral density (PSD). After being processed by the joint algorithm, the differential frequency amplitude of the experimental signal is finally improved by a factor of 3.14 and the SNR is improved by a factor of 2.72.

Original language	English
Article number	104928
Journal	Infrared Physics and Technology
Volume	134
DOIs	https://doi.org/10.1016/j.infrared.2023.104928
State	Published - Nov 2023

Keywords

Autocorrelation
Heterodyne
Photon arrival sequence

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10.1016/j.infrared.2023.104928

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title = "A joint algorithm based on photon heterodyne detection",

abstract = "The photonic heterodyne detection system, which has both the anti-interference advantage of the heterodyne detection and the detection sensitivity at the photon level, is widely used in the detection of long-range non-cooperative targets. In this paper, a joint algorithm is proposed to improve the signal-to-noise ratio (SNR) of the system for the problem of low SNR in remote target detection. Firstly, the photon arrival sequences with initial phases in the range of (-π/4, π/4) are coherently accumulated, and then the autocorrelation algorithm is used to obtain the final power spectral density (PSD). After being processed by the joint algorithm, the differential frequency amplitude of the experimental signal is finally improved by a factor of 3.14 and the SNR is improved by a factor of 2.72.",

keywords = "Autocorrelation, Heterodyne, Photon arrival sequence",

author = "Weijie Ge and Jianfeng Sun and Wei Lu and Rupeng Zhang and Xin Zhou",

note = "Publisher Copyright: {\textcopyright} 2023",

year = "2023",

month = nov,

doi = "10.1016/j.infrared.2023.104928",

language = "英语",

volume = "134",

journal = "Infrared Physics and Technology",

issn = "1350-4495",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - A joint algorithm based on photon heterodyne detection

AU - Ge, Weijie

AU - Sun, Jianfeng

AU - Lu, Wei

AU - Zhang, Rupeng

AU - Zhou, Xin

PY - 2023/11

Y1 - 2023/11

N2 - The photonic heterodyne detection system, which has both the anti-interference advantage of the heterodyne detection and the detection sensitivity at the photon level, is widely used in the detection of long-range non-cooperative targets. In this paper, a joint algorithm is proposed to improve the signal-to-noise ratio (SNR) of the system for the problem of low SNR in remote target detection. Firstly, the photon arrival sequences with initial phases in the range of (-π/4, π/4) are coherently accumulated, and then the autocorrelation algorithm is used to obtain the final power spectral density (PSD). After being processed by the joint algorithm, the differential frequency amplitude of the experimental signal is finally improved by a factor of 3.14 and the SNR is improved by a factor of 2.72.

AB - The photonic heterodyne detection system, which has both the anti-interference advantage of the heterodyne detection and the detection sensitivity at the photon level, is widely used in the detection of long-range non-cooperative targets. In this paper, a joint algorithm is proposed to improve the signal-to-noise ratio (SNR) of the system for the problem of low SNR in remote target detection. Firstly, the photon arrival sequences with initial phases in the range of (-π/4, π/4) are coherently accumulated, and then the autocorrelation algorithm is used to obtain the final power spectral density (PSD). After being processed by the joint algorithm, the differential frequency amplitude of the experimental signal is finally improved by a factor of 3.14 and the SNR is improved by a factor of 2.72.

KW - Autocorrelation

KW - Heterodyne

KW - Photon arrival sequence

UR - https://www.scopus.com/pages/publications/85172672970

U2 - 10.1016/j.infrared.2023.104928

DO - 10.1016/j.infrared.2023.104928

M3 - 文章

AN - SCOPUS:85172672970

SN - 1350-4495

VL - 134

JO - Infrared Physics and Technology

JF - Infrared Physics and Technology

M1 - 104928

ER -

A joint algorithm based on photon heterodyne detection

Abstract

Keywords

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