Dr. YunQing Liu Profile

Dr. YunQing Liu

at Changchun Univ of Science and Technology

SPIE Involvement:

Author

Publications (5)

SPIE Journal Paper | 31 March 2022

Improved face detection algorithm based on multitask convolutional neural network for unmanned aerial vehicles view

Zhihe Xun, Liang Wang, Yunqing Liu

JEI, Vol. 31, Issue 06, 061804, (March 2022) https://doi.org/10.1117/12.10.1117/1.JEI.31.6.061804

KEYWORDS: Facial recognition systems, Unmanned aerial vehicles, Detection and tracking algorithms, Target detection, Evolutionary algorithms, Convolutional neural networks, Performance modeling, Neural networks, Systems modeling, Target recognition

Read Abstract +

SPIE Journal Paper | 23 January 2019

Improving line-of-sight pointing accuracy of laser communication system based on Kalman filter

Ruoxi Wu, Xin Zhao, Chengjun Tian, Yunqing Liu, Yansong Song

OE, Vol. 58, Issue 01, 016110, (January 2019) https://doi.org/10.1117/12.10.1117/1.OE.58.1.016110

KEYWORDS: Filtering (signal processing), Telecommunications, Line of sight pointing, Optical communications, Navigation systems, Laser communications, Electronic filtering, Laser systems engineering, Optical filters, Antennas

Read Abstract +

SPIE Journal Paper | 14 December 2017

Line of sight pointing technology for laser communication system between aircrafts

Xin Zhao, YunQing Liu, Yansong Song

OE, Vol. 56, Issue 12, 126107, (December 2017) https://doi.org/10.1117/12.10.1117/1.OE.56.12.126107

KEYWORDS: Telecommunications, Cameras, Line of sight pointing, Optical communications, Calibration, Laser communications, Global Positioning System, Antennas, Laser systems engineering, Laser applications

Read Abstract +

Proceedings Article | 24 October 2017 Paper

Design of optical-mechanical structure for off-axis reflective star sensor ground calibration equipment

Haoran Zhu, Yunqing Liu, Wenying Zhang

Proceedings Volume 10463, 104630Z (2017) https://doi.org/10.1117/12.2283210

KEYWORDS: Optical design, Structural design, Reflectivity, Star sensors, Sensor calibration, Calibration, Collimators

Read Abstract +

Proceedings Article | 28 January 2006 Paper

Power analysis of CPA link for free space laser communication system

ShouFeng Tong, YunQing Liu, HuiLin Jiang

Proceedings Volume 6025, 602512 (2006) https://doi.org/10.1117/12.667040

KEYWORDS: Receivers, Laser communications, Free space optical communications, Transmitters, Laser systems engineering, CCD cameras, Interference (communication), Charge-coupled devices, Signal to noise ratio, Telecommunications

Read Abstract +

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Keywords/Phrases

Search In:

Publication Years