Dr. Yuan Zhao Profile

Dr. Yuan Zhao

at Harbin Institute of Technology

SPIE Involvement:

Author

Publications (26)

Proceedings Article | 18 December 2023 Paper

Enhanced signal-to-noise ratio of array imaging using quantum state engineering

Fan Jia, Zijing Zhang, Yuan Zhao

Proceedings Volume 12959, 129590U (2023) https://doi.org/10.1117/12.3007663

KEYWORDS: Signal to noise ratio, Angular momentum, Tunable filters, Interference (communication), Quantum noise, Imaging arrays, Quantum detection, Electronic filtering, Background noise, Optical filters

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Proceedings Article | 12 March 2021 Paper

Microwave signal generation based on the optoelectronic oscillator with a dual-long-loop configuration

Zhiqiang Shen, Yuan Zhao

Proceedings Volume 11763, 117630S (2021) https://doi.org/10.1117/12.2586045

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Proceedings Article | 12 March 2021 Paper

Maximum entropy method for imaging through turbid medium

Mingwei Huang, Zijing Zhang, Yuan Zhao

Proceedings Volume 11763, 117639K (2021) https://doi.org/10.1117/12.2587811

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Proceedings Article | 4 December 2020 Paper

Graphene-assisted microwave photonics filter with flat passband

Qunsong He, ZiJing Zhang, Yuan Zhao

Proceedings Volume 11617, 1161709 (2020) https://doi.org/10.1117/12.2584360

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Proceedings Article | 17 April 2020 Paper

High sensitivity ranging of photon counting lidar with two-dimensional modulation

Yifei Sun, Zijing Zhang, Zhiyuan Wang, Jiaxu Wen, Yuan Zhao

Proceedings Volume 11455, 114557R (2020) https://doi.org/10.1117/12.2565363

KEYWORDS: Modulation, Signal to noise ratio, LIDAR, Photon counting, Ranging, Signal detection

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Proceedings Article | 18 December 2019 Paper

High sensitivity ranging photon-counting chirped amplitude modulation lidar

Yi-Fei Sun, Zhi-Yuan Wang, Zi-Jing Zhang, Yuan Zhao

Proceedings Volume 11339, 113390G (2019) https://doi.org/10.1117/12.2547675

KEYWORDS: Modulation, LIDAR, Signal to noise ratio, Amplitude modulation, Ranging, Interference (communication), Photodetectors, Demodulation, Photon counting, Electronic filtering

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Proceedings Article | 10 May 2019 Paper

Ultrafast microwave frequency measurement based on electro-optic tunable Fabry-Perot etalon

Zhiqiang Shen, Chenfei Jin, Ce Guan, Qunsong He, Yuan Zhao

Proceedings Volume 11068, 1106829 (2019) https://doi.org/10.1117/12.2524693

KEYWORDS: Microwave photonics

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In modern radar systems and electronic warfare systems, instantaneous microwave frequency measurement (IFM) is widely used for detecting and roughly classifying unknown signals. However, conventional electrical approaches realizing IFM have hit the bottleneck of limitation in measurement range due to the limited bandwidth of the electronic components. Photonics-based approaches for microwave spectrum analysis are considered to be competitive alternatives because of the advantages such as wide instantaneous bandwidth, low loss and immunity to electromagnetic interference. In the past decades, a few methods of photonic approaches have been proposed. A tunable fiber Fabry-Perot interferometer (FFP)¹ and a fiber Bragg grating² used as an optical scanning receiver were reported, but the response time is long due to the piezoelectric ceramics (PZT) or electric heating driven systems, the scanning speed is only 200 Hz 2. IFM based on frequency-amplitude mapping technique was previously demonstrated.^{3, 4} However, the measurement range is limited to about 20 GHz and the accuracy varies in the whole range. In recent years, frequency measurement based on stimulated Brillouin scattering (SBS) with high resolution was reported,^{5, 6} but the existence of a scanning microwave signal source made the system complex and the response time is depended on the sweeping speed of the local oscillator, which is of the order of milliseconds. In Ref. 7, a system integrating SBS and a frequency shifting recirculating delay line (FS-RDL) was demonstrated. The sweeping time is about hundreds of microseconds, but there is a trade-off between sweeping time and measurement range. Measurement period of 5 s in 20 GHz range has been realized by channelized radio frequency measurement scheme.⁸ However, the implementation of an analog-to-digital converter with bandwidth of 2 GHz made the system complex and costly.

In this work, a novel approach of ultrafast frequency measurement based on electro-optic Fabry-Perot (EOFP) scanning receiver is proposed for the first time. In comparison with other frequency scanning measurement systems, which use methods such as mechanical tuning, electric heating, scanning microwave signal, FS-RDL, etc., our double-EOFP system can measure signals with frequency under 54 GHz in 2 s, which is the fastest scanning rate as far as we know.

Proceedings Article | 5 March 2018 Paper

Toward performing angular rotating measure of Heisenberg scaling by using the four-photon Holland-Burnett state

Jiandong Zhang, Zijing Zhang, Longzhu Cen, Shuo Li, Feng Wang, Yuan Zhao

Proceedings Volume 10710, 1071002 (2018) https://doi.org/10.1117/12.2303474

KEYWORDS: Photons, Single photon, Signal detection, Polarization, Metrology, Sensors, Super resolution, Crystals, Quantum information, Biological research

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Proceedings Article | 15 November 2017 Paper

An image registration algorithm for interferometric synthetic aperture lidar

Yong Zhang, Pengyu Qiu, Chenghua Yang, Lu Xu, Yuan Zhao

Proceedings Volume 10605, 106050W (2017) https://doi.org/10.1117/12.2296366

KEYWORDS: Image registration, Interferometric synthetic aperture radar, Interferometry, LIDAR, Correlation function, Detection and tracking algorithms, Computer simulations, Doppler effect, 3D acquisition, 3D image processing

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Proceedings Article | 15 November 2017 Paper

Super-resolving polarization rotation angle measurement using parity detection at shot noise limit

Jiandong Zhang, Zijing Zhang, Longzhu Cen, Shuo Li, Feng Wang, Yuan Zhao

Proceedings Volume 10605, 1060502 (2017) https://doi.org/10.1117/12.2286037

KEYWORDS: Polarization, Super resolution, Metrology

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Proceedings Article | 24 October 2017 Paper

Research on improving the precision of 1064nm fiber Doppler lidar in detecting rotating targets

Cheng-hua Yang, Yong Zhang, Xu Yang, Lu Xu, Yue-hao Liu, Yuan Zhao

Proceedings Volume 10457, 1045719 (2017) https://doi.org/10.1117/12.2283557

KEYWORDS: Doppler effect, LIDAR, Target detection, Heterodyning

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Proceedings Article | 7 November 2016 Paper

Photon counting chirped amplitude modulation lidar using an asymmetric triangular wave modulation

Zijing Zhang, Longzhu Cen, Jiandong Zhang, Kun Ma, Feng Wang, Yuan Zhao

Proceedings Volume 10141, 101410V (2016) https://doi.org/10.1117/12.2249728

KEYWORDS: Photon counting, LIDAR, Amplitude modulation, Modulation, Target detection, Signal detection, Doppler effect, Single photon, Heterodyning, Velocity measurements

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Proceedings Article | 15 October 2015 Paper

Principle and experiment study of non-modulated 1064nm CW Doppler fiber LADAR system

Chenghua Yang, Meng Tang, Yong Zhang, Yang Xu, Lu Xu, Qiang Wang, Yuehao Liu, Yuan Zhao

Proceedings Volume 9671, 96711K (2015) https://doi.org/10.1117/12.2202329

KEYWORDS: Doppler effect, LIDAR, Fiber lasers, Heterodyning, Continuous wave operation, Prototyping, Velocity measurements, Mirrors, Oscillators

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Proceedings Article | 13 October 2014 Paper

Range resolution improvement of phase coded lidar system utilizing detector characteristics for short codes acquirement

Long Wu, Tianyuan Qiao, Jun Zhang, Yong Zhang, Yuan Zhao

Proceedings Volume 9250, 925008 (2014) https://doi.org/10.1117/12.2067031

KEYWORDS: Sensors, Signal detection, LIDAR, Modulation, Ranging, Correlation function, Laser systems engineering, Pulsed laser operation, Imaging systems, CCD image sensors

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Proceedings Article | 21 February 2014 Paper

Virtual ghost imaging with partially coherent hyperbolic cosine Gaussian beam through turbulence

Xu Yang, Yong Zhang, Lu Xu, Chenfei Jin, Qin Xin, Yuan Zhao

Proceedings Volume 9142, 914209 (2014) https://doi.org/10.1117/12.2054076

KEYWORDS: Turbulence, Gaussian beams, Coherence imaging, Sensors, Atmospheric propagation, Beam propagation method, Coherence (optics), Atmospheric optics, Atmospheric modeling, Spatial light modulators

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Proceedings Article | 19 September 2013 Paper

Investigation of range accuracy of gain-modulated laser range imaging

Chen-fei Jin, Zi-tong Song, Si-qi Zhang, Tian-yuan Qiao, Yuan Zhao, Li-ying Tan

Proceedings Volume 8905, 890524 (2013) https://doi.org/10.1117/12.2034755

KEYWORDS: Range imaging, Cameras, Modulation, Signal to noise ratio, Receivers, Image intensifiers, Laser applications, Pulsed laser operation, Image processing, Convolution

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Proceedings Article | 16 August 2013 Paper

A high detection probability method for Gm-APD photon counting laser radar

Zi-jing Zhang, Yuan Zhao, Yong Zhang, Long Wu, Jian-zhong Su

Proceedings Volume 8912, 89121C (2013) https://doi.org/10.1117/12.2034694

KEYWORDS: LIDAR, Signal detection, Target detection, Photon counting, Interference (communication), Laser systems engineering, 3D image processing, 3D acquisition, Receivers, Avalanche photodiodes

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Proceedings Article | 17 September 2011 Paper

System gain optimization in direction detection lidar system

Long Wu, Fan Wu, Yuan Zhao, Yong Zhang, Yu Zhang, Jie Wu

Proceedings Volume 8127, 812705 (2011) https://doi.org/10.1117/12.902605

KEYWORDS: LIDAR, Signal processing, Imaging systems, Receivers, Pulsed laser operation, Electrons, Performance modeling, Target detection, Statistical modeling, Ranging

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Proceedings Article | 14 September 2011 Paper

Scannerless gain-modulated three-dimensional laser imaging radar

Chenfei Jin, Yuan Zhao, Xiudong Sun, Long Wu, Yu Zhang

Proceedings Volume 8159, 81590R (2011) https://doi.org/10.1117/12.902111

KEYWORDS: 3D image processing, Radar, Modulation, 3D scanning, Laser imaging, Receivers, Cameras, 3D acquisition, Image intensifiers, Image processing

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Proceedings Article | 20 August 2011 Paper

Construction of multi-functional open modulized Matlab simulation toolbox for imaging ladar system

Long Wu, Yuan Zhao, Meng Tang, Jiang He, Yong Zhang

Proceedings Volume 8192, 819215 (2011) https://doi.org/10.1117/12.899586

KEYWORDS: LIDAR, Imaging systems, Systems modeling, Optical simulations, Atmospheric modeling, Computer simulations, MATLAB, Sensors, Signal detection, Device simulation

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Proceedings Article | 24 December 2005 Paper

Device for performance detection of optical scanner

Yuan Zhao, Zhongxian Chen, Yu Zhang, Meng Tang, Liping Liu, XiuDong Sun

Proceedings Volume 6028, 602814 (2005) https://doi.org/10.1117/12.667170

KEYWORDS: Optical scanning, Image quality, Laser scanners, Optical scanning systems, Imaging systems, Computing systems, Scanners, Control systems, Charge-coupled devices, Optical components

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Proceedings Article | 24 December 2005 Paper

Detection of weak signal in laser ranging based on the theory of stochastic resonance

Yu Zhang, Yuan Zhao, Li-ping Liu, Meng Tang, Chen-fei Jin, Xiu-dong Sun

Proceedings Volume 6028, 602815 (2005) https://doi.org/10.1117/12.667172

KEYWORDS: Signal detection, Signal to noise ratio, Interference (communication), Ranging, Modulation, Stochastic processes, Complex systems, Signal processing, Laser range finders, Detection theory

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Proceedings Article | 19 August 1998 Paper

Wavelet transform on signal processing of the pulse laser radar

Yongjiang Dai, Quan Xiao, Yuan Zhao, Xiaoou Wang

Proceedings Volume 3561, (1998) https://doi.org/10.1117/12.319715

KEYWORDS: Wavelets, Signal detection, Wavelet transforms, Signal to noise ratio, Electronic filtering, LIDAR, Signal processing, Rectangular pulse, Interference (communication), Filtering (signal processing)

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Proceedings Article | 13 August 1998 Paper

Half-active IR night-viewer system

Yongjiang Dai, Yuan Zhao, Yingchun Wan, Yu Zhao, Guohong Yao

Proceedings Volume 3555, (1998) https://doi.org/10.1117/12.318187

KEYWORDS: Infrared imaging, Infrared cameras, Sensors, Imaging systems, Combustion, Infrared sensors, Infrared radiation, Switches, Cameras, Reflectivity

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Proceedings Article | 24 September 1996 Paper

Laser diode in a coherent resolved interferometer

Dongsong Sun, Shigang Liu, Yuan Zhao, Lijie Qiao

Proceedings Volume 2886, (1996) https://doi.org/10.1117/12.251911

KEYWORDS: Modulation, Semiconductor lasers, Coherence (optics), Interferometers, Beam splitters, Light sources, Imaging systems, Ferroelectric materials, Heterodyning, Sensors

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Proceedings Article | 5 August 1994 Paper

PSD sensor use in the robot vision system

Xiping Cai, Yongjiang Dai, Yuan Zhao, Yan Wang

Proceedings Volume 2321, (1994) https://doi.org/10.1117/12.182103

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Showing 5 of 26 publications

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