• Electronics Technology •

### Joint 2D DOA and Doppler frequency estimation for L-shaped array using compressive sensing

Shixin WANG*(), Yuan ZHAO(), Ibrahim LAILA(), Ying XIONG(), Jun WANG(), Bin TANG()

• Received:2019-02-25 Online:2020-02-20 Published:2020-02-25
• Contact: Shixin WANG E-mail:wangshixin_uestc@163.com;zy_uestc@outlook.com;eng.laila2@hotmail.com;xiongy@uestc.edu.cn;wangjung@uestc.edu.cn;bint@uestc.edu.cn
• About author:WANG Shixin was born in 1995. She is currently an M.S. student in School of Information and Communication Engineering, University of Electronic Science and Technology of China (UESTC). Her current research interest includes electronic reconnaissance. E-mail: wangshixin_uestc@163.com|ZHAO Yuan was born in 1992. He is currently a Ph.D. student in School of Information and Communication Engineering, UESTC. His current research interest includes electronic counter counter-measures (ECCM) in radar network. E-mail: zy_uestc@outlook.com|LAILA Ibrahim was born in 1988. She received her M.S. degree in Faculty of Engineering from Sudan University of Science and Technology in 2014. She is currently a Ph.D. student in School of Information and Communication Engineering, UESTC. Her current research interest includes electronic reconnaissance. E-mail: eng.laila2@hotmail.com|XIONG Ying was born in 1966. She received her M.S. degree in School of Electrical Engineering from UESTC in 2005. She is currently a professor at the School of Information and Communication Engineering, UESTC. Her current interests include electronic reconnaissance and countermeasure. E-mail: xiongy@uestc.edu.cn|WANG Jun was born in 1970. He received his M.S. degree from Yeungnam University, Korea, in 2003. He is currently engaged in professional courses teaching in UESTC. His research interests include signal processing technology of high speed and real time and information theory. E-mail: wangjung@uestc.edu.cn|TANG Bin was born in 1964. He received his Ph.D. degree in School of Electrical Engineering from UESTC in 1996. He is currently a professor at the School of Information and Communication Engineering, UESTC. His current interests include electronic counter-measures and ECCM. E-mail: bint@uestc.edu.cn

Abstract:

A joint two-dimensional (2D) direction-of-arrival (DOA) and radial Doppler frequency estimation method for the L-shaped array is proposed in this paper based on the compressive sensing (CS) framework. Revised from the conventional CS-based methods where the joint spatial-temporal parameters are characterized in one large scale matrix, three smaller scale matrices with independent azimuth, elevation and Doppler frequency are introduced adopting a separable observation model. Afterwards, the estimation is achieved by $L_{1}$-norm minimization and the Bayesian CS algorithm. In addition, under the L-shaped array topology, the azimuth and elevation are separated yet coupled to the same radial Doppler frequency. Hence, the pair matching problem is solved with the aid of the radial Doppler frequency. Finally, numerical simulations corroborate the feasibility and validity of the proposed algorithm.