Journal of Systems Engineering and Electronics ›› 2022, Vol. 33 ›› Issue (5): 1025-1031.doi: 10.23919/JSEE.2022.000100

• ELECTRONICS TECHNOLOGY •     Next Articles

Half space object classification via incident angle based fusion of radar and infrared sensors

Zhenyu HE1,2(), Xiaodong ZHUGE1, Junxiang WANG3, Shihao YU1(), Yongjun XIE1,4,*(), Yuxiong ZHAO5   

  1. 1 School of Electronic Information and Engineering, Beihang University, Beijing 100191, China
    2 Beijing Institute of Electronic System Engineering, Beijing 100854, China
    3 Beijing Institute of Astronautical Systems Engineering, Beijing 100076, China
    4 Shenzhen Institute of Beihang University, Shenzhen 518038, China
    5 School of Software, Beihang University, Beijing 100191, China
  • Received:2020-08-13 Online:2022-10-27 Published:2022-10-27
  • Contact: Yongjun XIE E-mail:hzy1015@buaa.edu.cn;shyu_ee@163.com;yjxie@buaa.edu.cn
  • About author:|HE Zhenyu was born in 1994. He received his B.S. degree from the School of Electronic Information and Engineering from Beihang University, Beijing, China. He is currently studying in Beihang University for his M.S. degree. His current interests include radar target recognition in half space and artificial intelligence. E-mail: hzy1015@buaa.edu.cn||ZHUGE Xiaodong was born in 1982. He received his M.S. and Ph.D. degrees from the Faculty of Electrical Engineering, Mathematics and Computer Science, Delft University of Technology, the Netherlands, in 2006 and 2010, respectively. From 2011 to 2014, he was a Research Scientist at FEI Electron Optics, Eindhoven, the Netherlands. He was with the National Research Institute for Mathematics and Computer Science, the Netherlands as a Researcher from 2014 to 2017. Since 2017, he has been an associate professor with Beihang University, Beijing, China. His research interests include microwave and millimeter wave sensing and systems, with a strong focus on near-field imaging and measurements. E-mail: zhuge@buaa.edu.cn||WANG Junxiang was born in 1987. He received his M.S. degree in School of Automation at Northwestern Polytechnical University. He is now working at Beijing Institute of Astronautical Systems Engineering. His research interests are controlled modeling and radar. E-mail: wangjunxiang87928@126.com||YU Shihao was born in 1993. He received his B.S. degree in School of Electronic Information and Engineering from Beihang University, Beijing, China. He is currently studying in Beihang University for his master's degree. His current interests include radar target recognition in half space and artificial intelligence. E-mail: shyu_ee@163.com||XIE Yongjun was born in 1968. He received his B.S., M.S., and Ph.D. degrees from Xidian University, Xi’an, China, in 1990, 1993, and 1996, respectively, in electronic engineering. From 1998 to 1999, he was with the University of Texas at Dallas, Dallas, TX, USA, as a post-doctoral research associate. From 1999 to 2001, he was with Duke University, Durham, NC, USA, as a post-doctoral research associate. In 2004, he was supported by the Program for the New Century Excellent Talents at the Ministry of Education, China. He is currently a professor in Beihang University. His research interests include electromagnetic theory, microwave technology, and mobile telecommunication. E-mail: yjxie@buaa.edu.cn||ZHAO Yuxiong was born in 1998. He received his B.E. degree in software engineering from Beihang University. Currently, he is working toward his M.S. degree in data science and machine learning from National University of Singapore. His research interests include machine learning, computer vision and data mining. E-mail: zhaoyuxiong@buaa.edu.cn
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (61571022; 61971022).

Abstract:

In this paper, we introduce an incident angle based fusion method for radar and infrared sensors to improve the recognition rate of complex targets under half space scenarios, e.g., vehicles on the ground in this paper. For radar sensors, convolutional operation is introduced into the autoencoder, a “winner-take-all (WTA)” convolutional autoencoder (CAE) is used to improve the recognition rate of the radar high resolution range pro?le (HRRP). Moreover, different from the free space, the HRRP in half space is more complex. In order to get closer to the real situation, the half space HRRP is simulated as the dataset. The recognition rate has a growth more than 7% compared with the traditional CAE or denoised sparse autoencoder (DSAE). For infrared sensor, a convolutional neural network (CNN) is used for infrared image recognition. Finally, we combine the two results with the Dempster-Shafer (D-S) evidence theory, and the discounting operation is introduced in the fusion to improve the recognition rate. The recognition rate after fusion has a growth more than 7% compared with a single sensor. After the discounting operation, the accuracy rate has been improved by 1.5%, which validates the effectiveness of the proposed method.

Key words: convolutional autoencoder (CAE), half space, high-resolution range profile (HRRP), incident angle based fusion, target recognition