Abstract
A broadband photonic analog-to-digital converter (ADC) for X-band radar applications is proposed and experimentally demonstrated. An X-band signal with arbitrary waveform and a bandwidth up to 2 GHz can be synchronously sampled and processed due to the optical sampling structure. In the experiment, the chirp signal centered at 9 GHz with a bandwidth of 1.6 GHz is sampled and down-converted with a signal-to-noise ratio of 7.20 dB and an improved noise figure. Adopting the photonic ADC in the radar receiver and the above signal as the transmitted radar signal, an X-band inverse synthetic aperture radar system is set up, and the range and cross-range resolutions of 9.4 and 8.3 cm are obtained, respectively.
© 2018 Chinese Laser Press
PDF Article
More Like This
Ka-band microwave photonic ultra-wideband imaging radar for capturing quantitative target information
Anle Wang, Jianghai Wo, Xiong Luo, Yalan Wang, Wenshan Cong, Pengfei Du, Junkai Zhang, Biao Zhao, Jin Zhang, Yong Zhu, Jiangqiao Lan, and Lan Yu
Opt. Express 26(16) 20708-20717 (2018)
Cited By
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Login to access Optica Member Subscription