Prof. Yao Mao Profile

Prof. Yao Mao

Professor at Institute of Optics and Electronics CAS

SPIE Involvement:

Author

Publications (22)

SPIE Journal Paper | 20 September 2023

KSPGD algorithm to restrain the influence of measurement noise in adaptive fiber coupling

Jinjin Peng, Yao Mao, Bo Qi

OE, Vol. 63, Issue 04, 041202, (September 2023) https://doi.org/10.1117/12.10.1117/1.OE.63.4.041202

KEYWORDS: Mathematical optimization, Signal filtering, Single mode fibers, Stochastic processes, Wavefronts, Optical engineering, Fiber couplers, Computer simulations, Wavefront aberrations, Optical fibers

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SPIE Journal Paper | 31 May 2022

Enhanced Smith predictor by Kalman filter prediction for the charge-coupled device-based visual tracking system

Yong Luo, Huaxiang Cai, Yao Mao, Yu Ding, Xingqiang Zhao, Zhong Wei

OE, Vol. 61, Issue 05, 054107, (May 2022) https://doi.org/10.1117/12.10.1117/1.OE.61.5.054107

KEYWORDS: Surface plasmons, Filtering (signal processing), Control systems, Optical tracking, Visualization, Optical engineering, Performance modeling, Charge-coupled devices, CCD image sensors, Sensors

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SPIE Journal Paper | 31 January 2022

Fuzzy fraction-order stochastic parallel gradient descent approach for efficient fiber coupling

Yongyi Chen, Tao Zhao, Jinjin Peng, Yao Mao

OE, Vol. 61, Issue 01, 016108, (January 2022) https://doi.org/10.1117/12.10.1117/1.OE.61.1.016108

KEYWORDS: Fuzzy logic, Fiber couplers, Stochastic processes, Optical engineering, Single mode fibers, Wavefronts, Optical fibers, Atmospheric turbulence, Optimization (mathematics), Device simulation

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Proceedings Article | 18 January 2019 Paper

An improved feedforward controller design method

QiuNong He, Yao Mao, Xi Zhou, Zhijun Li, Chao Zhang

Proceedings Volume 10839, 1083917 (2019) https://doi.org/10.1117/12.2506253

KEYWORDS: Filtering (signal processing), Control systems, Charge-coupled devices, Position sensors, Electronic filtering, Target detection, Device simulation, Control systems design, Feedback control

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Proceedings Article | 18 January 2019 Paper

Develop the fiber coupling efficiency based on SPGD control algorithm

Shuiqin Wu, Wei Ren, Yao Mao, Qiong Liu, Qianwen Duan

Proceedings Volume 10839, 108390O (2019) https://doi.org/10.1117/12.2504948

KEYWORDS: Fiber couplers, Mirrors, Optical fibers, Adaptive optics, Telecommunications, Charge-coupled devices, Control systems, Laser communications, Wavefronts, Fiber coupled lasers

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Proceedings Article | 16 January 2019 Paper

The independent azimuth zero calibration method based on single gyro for electro-optical tracking system

Qiong Liu, Wei Yu, Yao Mao, Jun Zhang

Proceedings Volume 10838, 108380H (2019) https://doi.org/10.1117/12.2504917

KEYWORDS: Gyroscopes, Calibration, Electro optical systems, Fiber optic gyroscopes

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Proceedings Article | 16 January 2019 Paper

Multiple closed-loop control based on improved Smith predictor

Qianwen Duan, Wei Ren, Wansheng Liu, Yao Mao, Yong Luo, Shuiqin Wu

Proceedings Volume 10838, 108380I (2019) https://doi.org/10.1117/12.2504921

KEYWORDS: Control systems, Microelectromechanical systems, Gyroscopes, Electro optics, Charge-coupled devices, Feedback control, Telescopes, Target detection

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Proceedings Article | 11 October 2018 Presentation

A combination method of Smith predictor and disturbance observer for optical tracking system

Wei Ren, Shuiqin Wu, Yao Mao, Ge Ren

Proceedings Volume 10791, 107910F (2018) https://doi.org/10.1117/12.2500055

KEYWORDS: Optical tracking, Sensors, Microelectromechanical systems, Control systems, Gyroscopes, Telecommunications, Astronomy, Optical communications, Charge-coupled devices, Magnetism

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Proceedings Article | 9 October 2018 Presentation + Paper

An additional velocity loop in the CCD and MEMS accelerometer-based lightweight optoelectronic system control

Yong Luo, Chao Deng, Yongmei Huang, Yao Mao, Qiongyan Wu

Proceedings Volume 10787, 107870U (2018) https://doi.org/10.1117/12.2327069

KEYWORDS: Microelectromechanical systems, Gyroscopes, Charge-coupled devices, Control systems, Optoelectronics, Mirrors, Fiber optic gyroscopes, Sensors, Optical engineering, Linear filtering

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SPIE Journal Paper | 21 August 2017

Plug-in module acceleration feedback control for fast steering mirror-based beam stabilization systems

Chao Deng, Wei Ren, Yao Mao, Ge Ren

OE, Vol. 56, Issue 08, 084105, (August 2017) https://doi.org/10.1117/12.10.1117/1.OE.56.8.084105

KEYWORDS: Feedback control, Control systems, Charge-coupled devices, Mirrors, Gyroscopes, Systems modeling, Calcium, Optical engineering, CCD cameras, Linear filtering

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SPIE Journal Paper | 4 August 2017

Virtual velocity loop based on MEMS accelerometers for optical stabilization control system

Wei Ren, Chao Deng, Yao Mao, Ge Ren

OE, Vol. 56, Issue 08, 085101, (August 2017) https://doi.org/10.1117/12.10.1117/1.OE.56.8.085101

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Proceedings Article | 24 October 2016 Paper

Design of efficient and simple interface testing equipment for opto-electric tracking system

Qiong Liu, Chao Deng, Jing Tian, Yao Mao

Proceedings Volume 9682, 968212 (2016) https://doi.org/10.1117/12.2243951

KEYWORDS: Automatic tracking, Telecommunications, Interfaces, Manufacturing, Human-machine interfaces, Data communications, Computer programming, Electronics, Design for manufacturability, Testing and analysis

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Proceedings Article | 24 October 2016 Paper

Study on rejection characteristic of current loop to the base disturbance of optical communication system

Yao Mao, Chao Deng, Qiong Liu, Zheng Cao

Proceedings Volume 9682, 968214 (2016) https://doi.org/10.1117/12.2244013

KEYWORDS: Optical communications, Telecommunications, Line of sight stabilization, Optical tracking, Control systems, Sensors, Laser stabilization, Laser communications, Acquisition tracking and pointing, Transformers

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Proceedings Article | 27 September 2016 Paper

Online damage inspection of optics for ATP system

Jing Chen, Yu Jiang, Yao Mao, Xun Gan, Qiong Liu

Proceedings Volume 9684, 968432 (2016) https://doi.org/10.1117/12.2243287

KEYWORDS: Acquisition tracking and pointing, Optical inspection, Inspection, Optical components, Image segmentation, Image acquisition, Image processing, Imaging systems, Video, Air contamination

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Proceedings Article | 27 September 2016 Paper

Research of maneuvering target prediction and tracking technology based on IMM algorithm

Zheng Cao, Yao Mao, Chao Deng, Qiong Liu, Jing Chen

Proceedings Volume 9684, 968430 (2016) https://doi.org/10.1117/12.2243242

KEYWORDS: Detection and tracking algorithms, Statistical analysis, Statistical modeling, Electro optical modeling, Motion models, Unmanned aerial vehicles, Error analysis, Target acquisition, Electronic filtering, Filtering (signal processing)

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Maneuvering target prediction and tracking technology is widely used in both military and civilian applications, the study of those technologies is all along the hotspot and difficulty. In the Electro-Optical acquisition-tracking-pointing system (ATP), the primary traditional maneuvering targets are ballistic target, large aircraft and other big targets. Those targets have the features of fast velocity and a strong regular trajectory and Kalman Filtering and polynomial fitting have good effects when they are used to track those targets. In recent years, the small unmanned aerial vehicles developed rapidly for they are small, nimble and simple operation. The small unmanned aerial vehicles have strong maneuverability in the observation system of ATP although they are close-in, slow and small targets. Moreover, those vehicles are under the manual operation, therefore, the acceleration of them changes greatly and they move erratically. So the prediction and tracking precision is low when traditional algorithms are used to track the maneuvering fly of those targets, such as speeding up, turning, climbing and so on. The interacting multiple model algorithm (IMM) use multiple models to match target real movement trajectory, there are interactions between each model. The IMM algorithm can switch model based on a Markov chain to adapt to the change of target movement trajectory, so it is suitable to solve the prediction and tracking problems of the small unmanned aerial vehicles because of the better adaptability of irregular movement. This paper has set up model set of constant velocity model (CV), constant acceleration model (CA), constant turning model (CT) and current statistical model. And the results of simulating and analyzing the real movement trajectory data of the small unmanned aerial vehicles show that the prediction and tracking technology based on the interacting multiple model algorithm can get relatively lower tracking error and improve tracking precision comparing with traditional algorithms.

Proceedings Article | 15 October 2015 Paper

The effect of physical parameters of inertial stabilization platform on disturbance rejection ability and its improvement method

Yao Mao, Chao Deng, Xun Gan, Jing Tian

Proceedings Volume 9676, 96760U (2015) https://doi.org/10.1117/12.2199692

KEYWORDS: Vibration isolation, Control systems, Optical tracking, Acquisition tracking and pointing, Line of sight stabilization, Free space optical communications, Telecommunications, Sensors, Optical communications, Electronics

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The development of space optical communication requires arcsecond precision or even higher precision of the tracking performance of ATP(Acquisition, Tracking and Pointing) system under the condition of base disturbance. ATP system supported by stabilized reference beam which is provided by inertial stabilization platform with high precision and high bandwidth, can effectively restrain the influence of base angular disturbance on the line of sight.

To get better disturbance rejection ability, this paper analyzes the influence of transfer characteristics and physical parameters of stabilization platform on disturbance stabilization performance, the result shows that the stabilization characteristics of inertial stabilization platform equals to the product of rejection characteristics of control loop and disturbance transfer characteristics of the platform, and improving isolation characteristics of the platform or extending control bandwidth can both achieve the result of getting a better rejection ability.

Limited by factors such as mechanical characteristics of stabilization platform, bandwidth/noise of the sensor, and so on, as the control bandwidth of the LOS stabilization platform is limited, and high frequency disturbance can not be effectively rejected, so the rejection of high frequency disturbance mainly depends on the isolation characteristics of the platform itself.

This paper puts forward three methods of improving the isolation characteristics of the platform itself, which includes 1) changing mechanical structure, such as reducing elastic coefficient, increasing moment of inertia of the platform, and so on; 2) changing electrical structure of the platform, such as increasing resistance, adding current loop, and so on; 3)adding a passive vibration isolator between the inertial stabilization platform and the base. The result of the experiment shows that adding current loop or adding a passive vibration isolator can effectively reject high frequency disturbance.

Proceedings Article | 15 October 2015 Paper

Application of independent component analysis in target trajectory prediction based on moving platform

Chao Deng, Yao Mao, Xun Gan, Jing Tian

Proceedings Volume 9676, 96760T (2015) https://doi.org/10.1117/12.2199623

KEYWORDS: Independent component analysis, Electro optical systems, Sensors, Linear filtering, Electro optics, Control systems, Computer programming, Interference (communication), Optimization (mathematics), Detection theory

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Proceedings Article | 15 October 2015 Paper

The application of frequency characteristics test in fast control mirror system

Xun Gan, Yu Jang, Zong You Wang, Yao Mao

Proceedings Volume 9676, 96760Q (2015) https://doi.org/10.1117/12.2199366

KEYWORDS: Signal to noise ratio, Control systems, Interference (communication), Mirrors, Computer simulations, MATLAB, Feedback signals, Control systems design, Servomechanisms, Precision measurement

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Proceedings Article | 8 October 2015 Paper

Analyze and experiment on AC magnetic field’s effect to fiber optic gyroscopes in compact stabilization control systems

Chao Zhang, Yao Mao, Jing Tian, Zhijun Li

Proceedings Volume 9679, 96791B (2015) https://doi.org/10.1117/12.2203287

KEYWORDS: Fiber optic gyroscopes, Magnetism, Control systems, Actuators, Sensors, Computer simulations, Control systems design, Polarization, Phase shifts, Solid state electronics

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Fiber optic gyroscopes (FOG) are getting more and more attention in areas such as stabilization control systems as they are all solid state and have a wide bandwidth. In stabilization systems that require wide bandwidth control, motors are usually used as actuating mechanism for active disturbance restrain. Voice coil motors (VCMs) are usually used in compact stabilization systems that require large torque and fast response. However, AC magnetic field, which can affect the output of FOG due to Faraday effect, will be generated during operation of VCMs. The frequency range affected by the AC magnetic field to the FOG’s output is the same as VCMs drive signal frequency range, which is also exactly the stabilization system’s working range. Therefore the effect of the AC magnetic field to FOGs must be evaluated to verify the feasibility of a stable system design that uses both FOGs and VCMs. In this article, the basic structure and operating principle of stabilization system is introduced. The influence of AC magnetic field to FOG is theoretically analyzed. The magnetic field generated by VCMs is numerically simulated based on the theory deduction of the magnetic field near energized wires. To verify the influence of the VCM generated magnetic field to the FOGs in practical designs, a simplified random fiber coil model is built for it’s hard to accurately test the exact polarize axis’s twisting rate in a fiber coil. The influence to the FOG’s output of different random coil model is simulated and the result shows a same trend that the influence of the VCM’s magnetic field to the FOG is reduced as the distance between the VCM and the FOG increasing. The influence of a VCM to a FOG with the same parameters is experimentally tested. In the Fourier transformed FOG data the same frequency point as the VCM drive signal frequency can be read. The result fit simulated result that as the distance increases, the influence decreases. The amplitude of the frequency point is just above the average noise spectrum amplitude of the tested FOG and that indicates the influence of the particular VCM’s AC magnetic field to the FOG’s output is negligible in this design. The feasibility of the future design can also be tested in the same way as the article introduced.

Proceedings Article | 8 October 2015 Paper

The study of control methods in opto-electronic tracking technology for fast object with horizontal gimbal

Zhi-jun Li, Qiong Liu, Yao Mao

Proceedings Volume 9678, 967812 (2015) https://doi.org/10.1117/12.2202291

KEYWORDS: Sensors, Control systems, Target detection, Optical tracking, Optoelectronics, Aerospace engineering, Acquisition tracking and pointing, Space telescopes, Error control coding, Signal to noise ratio

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Proceedings Article | 3 February 2015 Paper

Realization of LOS (Line of Sight) stabilization based on reflector using carrier attitude compensation method

Yao Mao, Jing Tian, Jia-guang Ma

Proceedings Volume 9255, 925543 (2015) https://doi.org/10.1117/12.2065311

KEYWORDS: Reflectors, Sensors, Line of sight stabilization, Target detection, Turbulence, Unmanned aerial vehicles, Mirrors, Mirror stabilization, Electro optical systems, Imaging systems

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Proceedings Article | 6 May 2009 Paper

Control system for multi-motor friction drive of a large-scale optical telescope

Yao Mao, Jia-Guang Ma, Qi-liang Bao, Song-hua Yang

Proceedings Volume 7281, 728107 (2009) https://doi.org/10.1117/12.831430

KEYWORDS: Control systems, Optical telescopes, Telescopes, Control systems design, Servomechanisms, Optical instrument design, Optics manufacturing, Seaborgium, Optical design, Manufacturing

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Showing 5 of 22 publications

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