A novel instantaneous frequency measurement scheme with high precision assisted by photonics

Jiaqi Li; Qihang Zhou; Xiangzhen Yu; Ke Du; Ke Song

doi:10.1117/12.2656198

9 January 2023 A novel instantaneous frequency measurement scheme with high precision assisted by photonics

Jiaqi Li, Qihang Zhou, Xiangzhen Yu, Ke Du, Ke Song

Proceedings Volume 12507, Advanced Optical Manufacturing Technologies and Applications 2022; and 2nd International Forum of Young Scientists on Advanced Optical Manufacturing (AOMTA and YSAOM 2022); 125071W (2023) https://doi.org/10.1117/12.2656198
Event: 2nd International Forum of Young Scientists on Advanced Optical Manufacturing (AOMTA and YSAOM 2022), 2022, Changchun, China

Abstract

In modern complex battlefield environment, it is important to obtain the frequency spectrum precisely. We propose an operational method of instantaneous frequency measurement (IFM) assisted by photonics, which can achieve high precision based on stimulated Brillouin scattering (SBS), giving the credit to the narrow linewidth of gain spectrum of SBS. By setting the scanning frequency, the amplitude comparison function (ACF) can be formed in the narrow lineband based on SBS effect. And the measurement of full frequency band is realized through a reference signal, the measured frequency range is limited only by photoelectric device. Estimation of multiple RFs can also be achieved with a resolution of 250MHz. In the numerical simulation, the average measurement error less than 1MHz is achieved in this scheme.

Citation Download Citation

Jiaqi Li, Qihang Zhou, Xiangzhen Yu, Ke Du, and Ke Song "A novel instantaneous frequency measurement scheme with high precision assisted by photonics", Proc. SPIE 12507, Advanced Optical Manufacturing Technologies and Applications 2022; and 2nd International Forum of Young Scientists on Advanced Optical Manufacturing (AOMTA and YSAOM 2022), 125071W (9 January 2023); https://doi.org/10.1117/12.2656198

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KEYWORDS

Photonics

Microwave radiation

Modulators

Signal attenuation

Nonlinear filtering

Error analysis

Microwave photonics

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