The signal-to-noise ratio analysis of coronal plane microwave correlation imaging based on azimuth one-dimensional array

ABSTRACT

Microwave correlation imaging is developed on the basis of the traditional radar imaging. It gets rid of the dependence of the traditional radar imaging on Doppler frequency, providing a new solution for the stationary or quasi-stationary target imaging. In this paper, the coronal plane microwave correlation imaging based on azimuth one-dimensional (1D) array was proposed. The resolution of the two-dimensional (2D) coronal plane along azimuth and elevation directions can be achieved by distributing the array in only one dimension without the synthetic aperture scanning in another dimension. By simulating the detection signals in the coronal plane region, it is determined this imaging method has the imaging resolution capability that is not available in the traditional SAR imaging in the coronal plane. The effectiveness of this imaging method was verified by the image reconstruction with three imaging algorithms. Moreover, the imaging performance including the signal-to-noise ratio was compared and analyzed.

KEYWORDS:

• Coronal plane
• azimuth one-dimensional (1D) array
• microwave correlation imaging
• imaging algorithm
• signal-to-noise ratio

Acknowledgements

Authors thank Professor Baoqing Sun for his help in optical correlation imaging algorithms.

Disclosure statement

No potential conflict of interest was reported by the authors.

ORCID

Xiaoxu Yu http://orcid.org/0000-0003-0427-0297

Additional information

Funding

This work was supported in part by the Youth Science and Nature Foundation of China [grant number 61801267], in part by the National Natural Science Foundation of China [grant numbers 61575109 and 21872084], in part by Fundamental Research Funds of Shandong University [grant number 2018TB044].

Notes on contributors

Xiaoxu Yu

Xiaoxu Yu was born in Heilongjiang province, People’s Republic of China. She received the B.E degree in Electronic information engineering from Shandong University, Jinan, China, in 2018. She is currently pursuing the master degree in Optical Engineering, Shandong University, Qingdao, China. Her research interests include microwave correlation imaging.

Dechun Li

Dechun Li was born in Shandong province, People’s Republic of China. He received the B.S, M.E, and Ph.D degree in optical engineering from Shandong University, Jinan, China, in 1900, 1993, and 2007, respectively. He is currently a Professor with the optical engineering, Shandong University, China; Member of the Optical Education Professional Committee, China Optical Society; Member of the Electronic Information Teaching Steering Committee, Shandong. His current interests include optoelectronic materials and devices, laser physics and technology, fiber optic communication and fiber optic sensing. He has undertaken or participated in many scientific research projects such as the National Natural Science Foundation and the National Special Project in recent years. He has won many awards such as outstanding scientific research achievements of universities in Shandong Province and published more than 80 papers in important academic journals at home and abroad.

Liuge Du

Liuge Du was born in Shandong province, People’s Republic of China. He received the B.E degree in electronic science and technology, the M.S degree and Ph.D degree in radio physic from Shandong University, Jinan, China, in 2005, 2008 and 2011, respectively. From 2011 to 2017, he was an engineer with the 41st research institute of China Electronics Technology Group Corporation(CETC). He is currently an Associate Professor with the electronic science and technology, Shandong University. He was the recipient of the Technological Invention Award (First Class) of CETC in 2016 and the Science and Technology Progress Award (First Class) of China Electronics Society in 2017. His current interests include algorithm for microwave imaging, computational electromagnetics and antenna measurement.

Hongwei Chu

Hongwei Chu was born in Shandong province, People’s Republic of China. He received the B.E degree in electronic science and technology, M.E degree in optical engineering, Ph.D degree in optical engineering from Shandong University, Jinan, China in 2008, 2011, and 2016, respectively. Since September 2016, he worked as a postdoc for the research and development of the photoinjector laser, the laser heater and the deep ultraviolet generation based on the nonlinear frequency conversion in Deutsches Elektronen-Synchrotron (DESY), Hamburg, Germany. He is currently a teacher with the optical engineering, Shandong University. His current interests include the ultrafast lasers and amplifiers, the nonlinear frequency generation and the optoelectronic materials.