TY - JOUR
T1 - Time–frequency analysis of microwave signals based on stimulated Brillouin scattering
AU - Ma, Dong
AU - Zuo, Pengcheng
AU - Chen, Yang
N1 - Publisher Copyright:
© 2022 Elsevier B.V.
PY - 2022/8/1
Y1 - 2022/8/1
N2 - An approach to evolving the photonics-based real-time Fourier transform or microwave frequency measurement system into a time–frequency analysis (TFA) system is proposed by adding a new measurement dimension to the system. Combining the above approach with stimulated Brillouin scattering (SBS)-assisted frequency-to-time mapping, two TFA links, namely the parallel SBS link and the time-division SBS link, are proposed. The parallel SBS link can be utilized to perform real-time TFA of microwave signals. A simulation is made to verify its feasibility by analyzing signals in multiple formats. The time-division SBS link has a simpler and reconfigurable structure, which can realize a high-resolution TFA of periodic signals using the time segmentation and accumulation technique. An experiment is performed for the time-division SBS link. The multi-dimensional reconfigurability of the system is experimentally demonstrated. An analysis bandwidth of 3.9 GHz, an analysis frequency up to 20 GHz, and a frequency resolution of 15 MHz are demonstrated, respectively.
AB - An approach to evolving the photonics-based real-time Fourier transform or microwave frequency measurement system into a time–frequency analysis (TFA) system is proposed by adding a new measurement dimension to the system. Combining the above approach with stimulated Brillouin scattering (SBS)-assisted frequency-to-time mapping, two TFA links, namely the parallel SBS link and the time-division SBS link, are proposed. The parallel SBS link can be utilized to perform real-time TFA of microwave signals. A simulation is made to verify its feasibility by analyzing signals in multiple formats. The time-division SBS link has a simpler and reconfigurable structure, which can realize a high-resolution TFA of periodic signals using the time segmentation and accumulation technique. An experiment is performed for the time-division SBS link. The multi-dimensional reconfigurability of the system is experimentally demonstrated. An analysis bandwidth of 3.9 GHz, an analysis frequency up to 20 GHz, and a frequency resolution of 15 MHz are demonstrated, respectively.
KW - Frequency-to-time mapping
KW - Microwave photonics
KW - Stimulated Brillouin scattering
KW - Time–frequency analysis
UR - https://www.scopus.com/pages/publications/85127458530
U2 - 10.1016/j.optcom.2022.128228
DO - 10.1016/j.optcom.2022.128228
M3 - 文章
AN - SCOPUS:85127458530
SN - 0030-4018
VL - 516
JO - Optics Communications
JF - Optics Communications
M1 - 128228
ER -