Abstract
Frequency estimation of microwave signals is a crucial functionality for applications ranging from biomedical engineering to electronic warfare systems. Photonics-based frequency measurement systems offer advantages of flexible reconfigurability and wide bandwidth compard to electronic methods. However, photonic based systems are limited by trade-offs between measurement range and accuracy. Here, we propose and experimentally demonstrate a frequency identification system with ultrahigh accuracy of 900 kHz, large bandwidth of 39 GHz, and the capability of multiple frequencies estimation. The great performance is achieved by wideband distributed frequency-to-power mapping created by self-heterodyne low-coherence interferometry. The results show that the system we proposed is beneficial for applications in RF spectrum sensing of modern communication and radar applications.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.