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粗糙目标外差检测中退相干效应的补偿及目标振动特性测量系统

Compensation for the Decoherence Effect in Heterodyne Detection of Rough Targets and a Target Vibration Characteristic Measurement System.

作者信息

Cao Changqing, Su Xiyuan, Liu Yutao, Zeng Xiaodong, Feng Zhejun, Shen Jingshi, Wang Ting, Yan Xu

机构信息

School of Physics and Optoelectronic Engineering, Xidian University, 2 South Taibai Road, Xian, 710071, China.

Shandong Institute of Space Electronic Technology, Yantai, 264670, China.

出版信息

Sci Rep. 2020 Apr 8;10(1):6077. doi: 10.1038/s41598-020-62966-0.

DOI:10.1038/s41598-020-62966-0
PMID:32269327
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7142099/
Abstract

In practical applications of signal detection, the roughness of a target surface significantly affects detection efficiency. In this paper, we propose a signal processing method that improves the sensitivity of a detection system by up to 100 times. In experiments, the target vibration measurement system successfully captured an automotive vibration power spectrum using the proposed signal processing method. This technology opens a new avenue for development in the field of rough surface target detection and recognition.

摘要

在信号检测的实际应用中，目标表面的粗糙度会显著影响检测效率。在本文中，我们提出了一种信号处理方法，可将检测系统的灵敏度提高多达100倍。在实验中，目标振动测量系统使用所提出的信号处理方法成功捕获了汽车振动功率谱。这项技术为粗糙表面目标检测与识别领域开辟了一条新的发展途径。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5ad3/7142099/b3f207bfd662/41598_2020_62966_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5ad3/7142099/256c08de36a8/41598_2020_62966_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5ad3/7142099/a14f8c5294b0/41598_2020_62966_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5ad3/7142099/29cfa3f273df/41598_2020_62966_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5ad3/7142099/1dd41579832a/41598_2020_62966_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5ad3/7142099/b3f207bfd662/41598_2020_62966_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5ad3/7142099/256c08de36a8/41598_2020_62966_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5ad3/7142099/a14f8c5294b0/41598_2020_62966_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5ad3/7142099/29cfa3f273df/41598_2020_62966_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5ad3/7142099/1dd41579832a/41598_2020_62966_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5ad3/7142099/b3f207bfd662/41598_2020_62966_Fig6_HTML.jpg

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本文引用的文献

1
Target speckle correction using an array detector in heterodyne detection.在外差检测中使用阵列探测器进行目标散斑校正。
Opt Lett. 2019 Dec 15;44(24):5896-5899. doi: 10.1364/OL.44.005896.
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Rapid-scan Fourier-transform coherent anti-Stokes Raman scattering spectroscopy with heterodyne detection.采用外差检测的快速扫描傅里叶变换相干反斯托克斯拉曼散射光谱学
Opt Lett. 2017 Nov 1;42(21):4335-4338. doi: 10.1364/OL.42.004335.
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Complex imaging via coherent detection.通过相干检测进行复杂成像。
Opt Express. 2017 Jul 24;25(15):17294-17305. doi: 10.1364/OE.25.017294.
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On-chip coherent detection with quantum limited sensitivity.片上相干检测达到量子极限灵敏度。
Sci Rep. 2017 Jul 6;7(1):4812. doi: 10.1038/s41598-017-05142-1.
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Appl Opt. 2016 Feb 20;55(6):1406-11. doi: 10.1364/AO.55.001406.
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Lensless optical image processing based on two-dimensional Fresnel diffraction for synthetic-aperture imaging ladar.基于二维菲涅耳衍射的无透镜光学图像处理用于合成孔径成像激光雷达。
Appl Opt. 2015 Feb 1;54(4):627-35. doi: 10.1364/AO.54.000627.
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New coherent laser communication detection scheme based on channel-switching method.基于信道切换方法的新型相干激光通信检测方案。
Appl Opt. 2015 Apr 1;54(10):2738-46. doi: 10.1364/AO.54.002738.
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Synthetic aperture ladar imaging demonstrations and information at very low return levels.合成孔径激光雷达成像演示以及极低回波水平下的信息。
Appl Opt. 2014 Aug 20;53(24):5531-7. doi: 10.1364/AO.53.005531.
9
Speckle phase noise in coherent laser ranging: fundamental precision limitations.相干激光测距中的散斑相位噪声：基本精度限制
Opt Lett. 2014 Aug 15;39(16):4776-9. doi: 10.1364/OL.39.004776.
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Optical image processing for synthetic-aperture imaging ladar based on two-dimensional Fourier transform.基于二维傅里叶变换的合成孔径成像激光雷达光学图像处理
Appl Opt. 2014 Mar 20;53(9):1846-55. doi: 10.1364/AO.53.001846.