.png){kind=icon}
返回
A joint algorithm based on photon heterodyne detection
.png){kind=icon}
PRE
AI
DOI：10.1016/j.infrared.2023.104928.png)
.png){kind=icon}
原文求助.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
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 ( -pi /4, pi /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.
Keyword:
Heterodyne
Photon arrival sequence
Autocorrelation
期刊
I
IF:
3.4
论文数:
5.8K
被引数:
1.2W
机构
引用论文
Lifetime-ultra-prolonged luminescent multilayer thin films with electronic microenvironment寿命超长的电子微环境发光多层薄膜.png)
RSC Adv.
RSC Adv.IF0
PREAI
分享收藏Kilometer-range depth imaging at 1550 nm wavelength using an InGaAs/InP single-photon avalanche diode detectorOPTICS EXPRESS
OAAI
OPTICS EXPRESSIF3.3
OAAI分享收藏A closed-form expanded autocorrelation method for frequency estimation of a sinusoidSIGNAL PROCESSING
SIGNAL PROCESSINGIF3.6
PREAI
分享收藏Variables Associated with Jaw Clicking in a South Australian Population: A Cross-Sectional StudyOral
OAAI
OralIF0
OAAI分享收藏Range accuracy of photon heterodyne detection with laser pulse based on Geiger-mode APDOPTICS EXPRESSOAAI
OPTICS EXPRESSIF3.3
OAAI分享收藏Ferroelectrics: BaMgF4: An Ultra‐Transparent Two‐Dimensional Nonlinear Photonic Crystal with Strong χ(3) Response in the UV Spectral Region (Adv. Funct. Mater. 11/2014)铁电体：BaMgF4：一种在紫外光谱区域具有强χ(3)响应的超透明二维非线性光子晶体（Adv. Funct. Mater. 11/2014）OAAI
OAAI分享收藏
查看更多内容