Abstract
This paper presents a frequency-domain imaging algorithm for near-field one-stationary bistatic synthetic aperture radar (OS-BiSAR) in the millimeter-wave (mmW) band. During the image reconstruction process, the interpolation procedure introduced by traditional fast imaging algorithm is avoided. By appropriately decomposing and approximating the nonlinear phase in frequency-domain echo, only multiplication and fast Fourier transform operations are carried out to achieve the lowest computational load. In addition, this method takes the propagation attenuation into consideration, which leads to a better imaging quality than the improved range migration algorithm for distant targets. Both simulation and measurement results validate the effectiveness of the proposed method on high-precision real-time imaging.
© 2021 Optica Publishing Group
Full Article | PDF ArticleMore Like This
Hang Gao, Chao Li, Shiyou Wu, Shen Zheng, Hongwei Li, and Guangyou Fang
Opt. Express 28(2) 2411-2426 (2020)
Weikang Si, Xiaodong Zhuge, Zhiqiang Pu, and Jungang Miao
Opt. Express 29(16) 25142-25160 (2021)
Aaron V. Diebold, Laura Pulido-Mancera, Timothy Sleasman, Michael Boyarsky, Mohammadreza F. Imani, and David R. Smith
J. Opt. Soc. Am. B 34(12) 2610-2623 (2017)