TY-Space Technology (Beijing) Ltd.
TY-Space Technology (Beijing) Ltd. specializes in the development and production of Star Trackers. The core technology comes from the research and development of Tsinghua University in the past two decades. Out there 133 orbital star trackers are work well. Some star-trackers are working for national major tasks, China's lunar exploration projects and Gaofen projects, and some for communication satellites.
Dynamic star simulator
Dynamic star simulator





视场:15°x 18°[有效]

精度:非光轴方向<5″  光轴方向<50″




视场:21.3° x 19.5°

大速率精度:非光轴方向5(3σ) 光轴方向:50(3σ)


PST3-H1 Star Tracker
PST3-H1 Star Tracker


视场:15° x 18°    精度:非光轴方向<5''(3σ) 光轴方向<50"(3σ)          数据更新率:≥10Hz

Performance Testing
Environmental test
Space target discovery and tracking
Remote sensing camera calibration in orbit
Performance Testing


Stargazing test

Test star tracker static, dynamic attitudeefficiency, static accuracy, dynamic performance, polarity, and capture time inall-sky zone. The device is fixedly connected to the turntable, differentangular speeds of the rotation can be set to realize the measurement ofdifferent sky areas.


Dynamicaccuracy test

Thedynamic accuracy test is to verify the dynamic performance of the device bytesting the dynamic accuracy of the device under different angular velocitieson a high-precision turntable. The measurement of dynamic accuracy is thedifference between the actual rotation angle of the turntable and the rotationangle of the equipment. A parallel light pipe is used to simulate a single starpoint, and the turntable is used for external synchronous transmission. Thefalling edge of the FEN signal of the device triggers the turntable. Theturntable outputs real-time position through RS422. The device image is savedin real-time by the image transmission software and the angle value iscalculated. Internal exposure and line input compensation can verify thedynamic accuracy of the device.


Stray light test

Test equipment stray light exclusion angle.Fix the device on the turntable, set different light intensity of the solarsimulator according to the test requirements, adjust the angle of the deviceand the solar simulator, make the optical axis direction of the device lenscoincides with the light path direction, record it as the zero degree position,adjust the rotation Record the working status of the equipment at differentangles to verify the stray light suppression performance.


Installation matrix measurement

Measure the transformation matrix betweenthe device sensor coordinate system and the satellite coordinate system, (theprism can be the reference prism that comes with the device sensor or thereference prism for the entire satellite). Utilizing the self-collimationfunction of the theodolite, the system alignment measurement is performed tocalibrate the device sensor prism coordinate system and the satellitecoordinate system. It is used to measure the installation matrix betweenprisms, and equipment.

Environmental test


Vibration test

The frequency range of the electrical ShakerTables is 5-3500Hz, the maximum no-load acceleration is 1000m / s2, and themaximum speed is 1.8m / s, the maximum displacement is 51mm, the maximum loadis 300kg, and the effective weight of the moving table is 6kg. Its workingprinciple is the same as that of the loudspeaker, which is the current-carryingconductor is moved by the electromagnetic force in the magnetic field. When thecurrent passing through the moving coil of the vibration table generates anexciting force with an alternating signal, a vibration movement occurs. Theshaking table simulates the product vibration environment and is suitable forproducts working in a vibration environment such as national defense, aviation,and electronics. The tests include frequency sweep, sinusoidal vibration,random vibration, noise, and shock.


Thermal cycling

Programmable constant temperature andhumidity test chamber temperature range is -60 ~ + 150 , the volumeis 1000L. Constant temperature and humidity control system, PID control SSR, sothat the heating and humidification of the system equals the amount of heat andhumidity loss. The dry-wet bulb temperature measurement signal is compared withthe A / D conversion input controller CPU and RAN and output to the I / Oboard. The I / O board sends instructions to make the air supply system andrefrigeration system work and at the same time PID control SSR or heating SSR,or humidify SSR so that the amount of heat and humidity through the air supplysystem uniform test box to achieve a constant temperature and humidity.Applicable to the related industries such as optoelectronics, semiconductorindustry, auto parts, household appliances, various electronic components andso on.


Thermal vacuum

Vacuum degree can reach 5x10-5Pa,temperature range is -60 ~ + 120 . During the simulation test, the test piece is in a working state,placed in the vacuum tank, and the gas in the container is extracted to therequired value. The working parameters and environmental parameters of the testpiece verify the adaptability of the test piece in a vacuum environment. Thetest is mostly used to inspect the manufacturing process of spacecraft equipmentand find that the spacecraft equipment fails early.

Space target discovery and tracking


Remote sensing camera calibration in orbit





  • 学术专著:邢飞,尤政,孙婷等《APS CMOS星敏感器系统原理及实现方法》,国防工业出版社 2016;

  • 学术专著的一章:尤政等著《空间微系统与微纳卫星》第五章《先进空间光学姿态敏感器技术》,国防工业出版社 2013;

  • Zhenzhen Chen, Fei Xing*,Zheng You, Minsong Wei, Haiyang Zhan, multimorphological top-hats basedmultiscaletargets classification algorithm for real-time image processing[J].Applied Optics 2019,

  • Jingyu Bao, Fei Xing, TingSun, et al.   CMOS imager non-uniformityresponse correction-based high-accuracy spot target localization[J]. AppliedOptics, 2019, 58(16): 4560-4568.

  • Li Jin, Xing Fei, Shrestha PK, et al. On-orbit Self-Focusing using conjugated Optical Fiber Waveguides forspace optical Cameras[J].   IEEEGeoscience and Remote Sensing Letters, 2019.

  • Wei, Min-Song, Fei Xing*, andZheng You. "A real-time detection and positioning method for small andweak targets using a 1D morphology-based approach in 2D images." Light:Science & Applications 7(5) (2018): 18006.

  • Sun Ting., Xing Fei, BaoJingyu., Ji Songsong., & Li Jin. (2018). Suppression of stray light basedon energy information mining. Applied optics, 57(31), 9239-9245.

  • Zhang, Shuo, Fei Xing*, TingSun, Zheng You, and Minsong Wei. "Novel approach to improve the attitudeupdate rate of a star tracker." Optics Express 26, no. 5 (2018):5164-5181. IF=3.307

  • Zhang, Shuo, Fei Xing*, TingSun, and Zheng You. “Quaternion-based filtering for gyroless attitudeestimation without an attitude dynamics model.” Metrology and MeasurementSystems 25(3) (2018): 631-643

  • Liu Fengdeng, Xing Fei*, YouZheng. Preparation of Ni–P alloys super-black materials applied to bafflesurface[J]. Surface Engineering, 2018, 34(12): 892-899.

  • Geng Wang, Fei Xing*, MinsongWei, Ting Sun, Zheng You, Optimization method of star tracker orientation forsun-synchronous orbit based on space light distribution, Applied Optics, 2017,56(15). IF=1.65

  • Geng Wang, Fei Xing*, MinsongWei, Ting Sun, Zheng You, Optimization method for star tracker orientation inthe sun-pointing mode, Chinese Optics Letters, 2017, 15(8)   IF=1.859

  • Wang G, Xing F, Wei M S, andYou Z. Rapid optimization method of the strong stray light elimination forextremely weak light signal detection. Optics Express, 2017,25(21):26175-26185. (SCI收录, 检索号: FJ9NC, 影响因子:3.307.)

  • Geng Wang, Fei Xing, MinsongWei, Ting Sun, Zheng You, Optimization method of installation orientation andbaffle design for dual- FOVs star tracker, Advances in the AstronauticalSciences, 160, 3719-3731, (2017), Conference: 27th AAS/AIAA Space FlightMechanics Meeting 2017. February 5, 2017-February 9, 2017. Sponsor: AmericanAstronautical Society(AAS); American Institute of Areonautics andAstronautics(AIAA) Astrodynamics Technical Committee; Space Flight MechanicsCommittee.

  • Minsong wei, Fei Xing, ZhengYou, A highly accurate wireless digital sun sensor based on profile detectingand detector multiplexing technologies[J]. Mechanical Systems and SignalProcessing, 2017, 82: 56-67

  • Sun Ting, Xing Fei, WangXiaochu, et al. Effective star tracking method based on optical flow analysisfor star trackers[J]. Applied Optics, 2016, 55(36): 10335-10340. (1 citation)

  • Li J, Xing F, Chu D, et al.High-Accuracy Self-Calibration for Smart, Optical Orbiting Payloads Integratedwith Attitude and Position Determination[J]. Sensors, 2016, 16(8): 1176.

  • Sun T, Xing F, Wang X, et al.An accuracy measurement method for star trackers based on direct astronomicobservation[J]. Scientific reports, 2016, 6: 22593   (8 citations)

  • Wang Geng, Xing Fei* et al."Precision enhancement method for multiplexing image detector-based sunsensor with varying and coded apertures." Applied Optics 54.35 (2015):10467-10472.   (3citations)

  • Special Issue: Xing Fei, SmartOptical Instruments and Systems for Space Applications. [J] Instrumentation,2015 Vol 1.

  • Li Jin, Xing Fei*, Sun Ting,You Zheng, Space high accuracy intelligence payload system with integratedattitude and position determination. Instrumentation, Vol 2, No.1 P3-17 March2015.

  • Sun Ting, Xing Fei*, YouZheng, Research on Dynamic Performance of Star tracker. Instrumentation, Vol 2,No.1, P18-26 March 2015.

  • Wei Minsong, Xing Fei*, WangGeng, You Zheng, System modeling based measurement error analysis of digitalsun sensors. Instrumentation, Vol 2, No.1 P27-P32, March 2015.

  • Liu Zengyi, Zhaoborui, FeiXing, Design and error analysis of a high accurate star simulator based onoptical splicing technology. Instrumentation, Vol 2, No.1 P44-56, March 2015

  • Li jin, Xing Fei*, Sun Ting,You Zheng, Efficient assessment method of on-board modulation transfer functionof optical remote sensing sensors. [J] Optics Express, 2015, 23(5):6187-6208.(1 citations)

  • Wang Hongjian, Xing Fei*, YouZheng, Chu Daping, Study on a High-precision Earth Sensor with Triple-FOV. [J],Instrumentation, 2014, 2: 003.

  • Wei Minsong,   Xing Fei*, You Zheng, et al.   Multiplexing image detector method fordigital sun sensors with arc-second class accuracy and large FOV. [J] OpticsExpress, 2014, 22(19): pp.23094-23107. SCI, IF=3.525,   WOS:000342756500084, IDS: AQ4IB,SCI&SCI-E   (2 times)

  • Sun Ting, Xing Fei*, YouZheng, et al. Deep coupling of star tracker and MEMS-gyro data under highdynamic and long exposure conditions. [J] Measurement Science and Technology,2014, 25(8), 085003. SCI, IF =1.352, WOS:000339273800013, IDS: AL6WJ, SCI &SCI-E   (4times)

  • Sun Ting, Xing Fei*, YouZheng, et al. Smearing model and restoration of star image under conditions ofvariable angular velocity and long exposure time. [J] Optics Express, 2014,22(5): 6009-6024. SCI, IF=3.525, WOS:000333579200153, IDS: AD9IS, Citation: (19times),

  • Wang Chong,You Zheng,Xing Fei* , et al. Optical Flow Inversion for Remote Sensing ImageDense Registration and Sensor's Attitude Motion High-Accurate Measurement. [J]Mathematical Problems in Engineering, 2014(2014): 432613. SCI, IF=1.082;WOS:000330440500001; IDS: 300BX, SCI-E (1times)

  • Li Jin, Xing Fei *,You Zheng,Compression of Multispectral Images with Comparatively Few Bands UsingPosttransform Tucker Decomposition. [J] Mathematical Problems in Engineering,2014(2014): 296474. SCI, IF=1.082,   WOS:000342933000001, IDS:AQ6OF, SCI-E (1times)

  • Li jin, Xing Fei*, Sun Ting,You Zheng. Multi-band CCD Image Compression for Space Camera with Large Fieldof View. [J] Journal of Applied Mathematics, 2014(2014), 374285 SCI, IF=0.834;(1times)

  • Li jin, Xing Fei*, Sun Ting,You Zheng. An Efficient Image Compressor for Charge Coupled Devices (CCD)Camera. [J] The Scientific World Journal, 2014(2014), 840762. SCI,IF=1.220.   WOS:000343547500001, IDS:AR4HG, SCI-E

  • Li Jin, Xing Fei*, Sun Ting,You, Zheng, Multispectral Image Compression Based on DSC Combined withCCSDS-IDC. [J] The Scientific World Journal, 2014(2014), 738735 SCI, IF=0.834;WOS:000343516900001, IDS: AR3VM, SCI-E

  • Sun Ting, Xing Fei*, et al.Motion-blurred star acquisition method of the star tracker under high dynamicconditions. [J] Optics Express 2013, 21(17): 20096-20110. IF=3.525,WOS:000323830500064, IDS:210KD,Citations:7,other citations: 2, web of science: 5, other web of science: 0, SCI &SCI-E(25 citations)

  • Wei Minsong, Xing Fei*, YouZheng et al. An implementation method based on ERS imaging mode for sun sensorwith 1 kHz update rate and 1 ″precision level. [J] Optics Express, 2013, 21(26): 32524-32533.IF=3.525,   WOS:000329205200079, IDS:282WP, Citations:1,othercitations:0,web of science:1 SCI& SCI-E(5 citations)

  • Xing Fei*, Zhao borui, ShiWenying et al. Study on Tunable Fabrication of the Ultra-black Ni–P Film and its BlackingMechanism. [J] Electrochimica Acta, 2013, 100: 157-163. IF=5.1,WOS:000320492400021, IDS:165OE, Citations:5, other citations:5,webof science:4, other web of science:4, SCI &SCI-E   (13citations)

  • Sun Ting, Xing Fei*, and YouZheng. Optical System Error Analysis and Calibration Method of High-AccuracyStar Trackers. [J] Sensors 2013, 13(4): 4598-4623. IF=2.048, WOS:000318036400037,IDS:131ZC, Citations:13, other citations:8, web ofscience: 10, other web of science: 6 SCI-E (22 citations)