[1] Li Y Q, Pei L, Li J et al. Theory study on a range-extended and resolution-improved microwave frequency measurement[J]. Journal of Modern Optics, 63, 613-620(2016).

[2] Tu Z Y, Wen A J, Gao Y S et al. A photonic technique for instantaneous microwave frequency measurement utilizing a phase modulator[J]. IEEE Photonics Technology Letters, 28, 2795-2798(2016).

[3] Xing J N, He H X, Chi H et al. Research progress of frequency measurement of microwave signal based on photonics[J]. Laser Technology, 42, 404-409(2018).

[4] Seeds A J. Microwave photonics[J]. IEEE Transactions on Microwave Theory and Techniques, 50, 877-887(2002).

[5] Emami H, Ashourian M. Improved dynamic range microwave photonic instantaneous frequency measurement based on four-wave mixing[J]. IEEE Transactions on Microwave Theory and Techniques, 62, 2462-2470(2014).

[6] Pagani M, Vu K, Choi D Y et al. Instantaneous microwave frequency measurement using four-wave mixing in a chalcogenide chip[J]. Optics Communications, 373, 100-104(2016).

[7] Shin M, Kumar P. Optical microwave frequency up-conversion via a frequency-doubling optoelectronic oscillator[J]. IEEE Photonics Technology Letters, 19, 1726-1728(2007).

[8] Zhang H L. Instantaneous microwave frequency measurement with wide range and high resolution based on dual polarization modulation[J]. Chinese Journal of Lasers, 41, 1108004(2014).

[9] Wang Y X, Li J N, Zhou T et al. All-optical microwave photonic downconverter with tunable phase shift[J]. IEEE Photonics Journal, 9, 1-8(2017).

[10] Li Q, Du C, Li X et al. Microwave photonic down-conversion system based on stimulated Brillouin scattering effect[J]. Chinese Journal of Lasers, 46, 0701006(2019).

[11] Long X, Zou W W, Chen J P et al. Broadband instantaneous frequency measurement based on stimulated Brillouin scattering[J]. Optics Express, 25, 2206-2214(2017).

[12] Zhang C, Yu W F, Li Z L et al. Numerical study on scattering properties for the stimulated Brillouin scattering fiber[J]. Acta Optica Sinica, 35, 0319005(2015).

[13] Feng D Q, Xie H, Qian L F et al. Photonic approach for microwave frequency measurement with adjustable measurement range and resolution using birefringence effect in highly non-linear fiber[J]. Optics Express, 23, 17613-17621(2015).

[14] Xiao Y C, Guo J, Wu K et al. Multiple microwave frequencies measurement based on stimulated Brillouin scattering with improved measurement range[J]. Optics Express, 21, 31740-31750(2013).

[15] Xin G Y, Zou W W, Long X et al. Polarization optimization for instantaneous frequency measurements based on stimulated Brillouin scattering[J]. Acta Optica Sinica, 39, 0507001(2019).

[16] Wang X, Qin Z J, Xiong X M et al. Stimulated Brillouin scattering in few-mode fiber[J]. Laser & Optoelectronics Progress, 56, 162901(2019).

[17] Jiao W T, You K, Sun J Q et al. Multiple microwave frequency measurement with improved resolution based on stimulated Brillouin scattering and nonlinear fitting[J]. IEEE Photonics Journal, 11, 1-12(2019).

[18] Xu Y M, Pan W, Lu B et al. Multi-stopband microwave photonic filter based on stimulated Brillouin scattering[J]. Chinese Journal of Lasers, 45, 1106004(2018).

[19] Li W, Zhu N H, Wang L X et al. Brillouin-assisted microwave frequency measurement with adjustable measurement range and resolution[J]. Optics Letters, 37, 166-168(2012).

[20] Zheng S L, Ge S X, Zhang X M et al. High-resolution multiple microwave frequency measurement based on stimulated Brillouin scattering[J]. IEEE Photonics Technology Letters, 24, 1115-1117(2012).

[21] Jiang H Y, Marpaung D, Pagani M et al. Multiple frequencies microwave measurement using a tunable Brillouin RF photonic filter[C], 1-2(2015).

[22] Jiang H Y, Marpaung D, Pagani M et al. Wide-range, high-precision multiple microwave frequency measurement using a chip-based photonic Brillouin filter[J]. Optica, 3, 30-34(2016).

[23] Li S J, Li X, Chen J P et al. Instantaneous frequency measurement of stimulated Brillouin scattering based on doped silica waveguides[J]. Optical Communication Technology, 44, 27-30(2020).