[1] Radio Communication Division of the International Telecommunication Union. The ITU-R Framework for IMT-2030[R](2023).

[2] Simon M K, Omura J K, Scholtz R A et al[M]. Spread spectrum communications handbook(1994).

[3] Bird J, Felstead E. Antijam performance of fast frequency-hopped M-ary NCFSK: an overview[J]. IEEE Journal on Selected Areas in Communications, 4, 216-233(1986).

[4] Felstead E B. Follower jammer considerations for frequency hopped spread spectrum[C]. MILCOM, 474-478(98).

[5] Yao J P. Microwave photonics[J]. Journal of Lightwave Technology, 27, 314-335(2009).

[6] Xie X J, Wei C, Ye J et al. Terahertz photodetector and its heterogeneous integration (invited)[J]. Acta Optica Sinica, 44, 1513009(2024).

[7] Hao T F, Li M J, Xiao S Y et al. Novel optoelectronic oscillators (invited)[J]. Acta Optica Sinica, 44, 1513031(2024).

[8] Cheng Y. Thin film lithium niobate electro-optic devices and ultralarge-scale photonic integration (invited)[J]. Chinese Journal of Lasers, 51, 0119001(2024).

[9] Zhou P, Zhang F Z, Ye X W et al. Flexible frequency-hopping microwave generation by dynamic control of optically injected semiconductor laser[J]. IEEE Photonics Journal, 8, 5501909(2016).

[10] Nakarmi B, Bai Y S, Fang C Q et al. Photonically generated frequency hopped linear frequency modulated signal using a DFB laser[J]. Journal of Lightwave Technology, 40, 6729-6736(2022).

[11] Yu X Y, Zhang F Z, Li X Y et al. Broadband stepped-frequency radar waveform generation by Fourier domain mode-locking period-one laser dynamics[J]. Optics Letters, 49, 4266-4269(2024).

[12] Chen Y. High-speed and wideband frequency-hopping microwave signal generation via switching the bias point of an optical modulator[J]. IEEE Photonics Journal, 10, 5500407(2018).

[13] Feng X, Yan L S, Jiang H Y et al. Photonic generation of multilevel frequency-hopping microwave signal[J]. IEEE Photonics Journal, 11, 5500207(2019).

[14] Li W Z, Zhang W F, Yao J P. Frequency-hopping microwave waveform generation based on a frequency-tunable optoelectronic oscillator[C], 1-3(2014).

[15] Zhou W N, Qu S L, Du C et al. High-speed frequency-hopping signal generator with a stimulated Brillouin scattering-based optoelectronic oscillator[J]. Optical Engineering, 59, 027101(2020).

[16] Ge J, Feng H L, Scott G et al. High-speed tunable microwave photonic notch filter based on phase modulator incorporated Lyot filter[J]. Optics Letters, 40, 48-51(2015).

[17] Ge J, Fok M P. Ultra high-speed radio frequency switch based on photonics[J]. Scientific Reports, 5, 17263(2015).

[18] Ge J, Fok M P. Optically controlled fast reconfigurable microwave photonic dual-band filter based on nonlinear polarization rotation[J]. IEEE Transactions on Microwave Theory and Techniques, 65, 253-259(2017).

[19] Liu Q D, Fok M P. Real-time temporal signal stitching using polarization-dependent optical wave mixing[C]. DC, FTu5B.4-19(2019).

[20] Jiang H Y, Yan L S, Pan W et al. Ultra-high speed RF filtering switch based on stimulated Brillouin scattering[J]. Optics Letters, 43, 279-282(2018).

[21] Zhou F, Wang X, Yan S Q et al. Frequency-hopping microwave generation with a large time-bandwidth product[J]. IEEE Photonics Journal, 10, 7800809(2018).

[22] Yang Z C, Yang F, Wen Z Y et al. Ultra-wideband photonic frequency-hopping waveform generator enabled by optical injection locking for secure terahertz wireless communications[J]. Journal of Lightwave Technology, 42, 6788-6797(2024).

[23] Kang B C, Li L, Tan Q G et al. Wideband microwave frequency-hopping signal generation technology based on coherent double optical comb[J]. Journal of Lightwave Technology, 42, 7634-7642(2024).

[24] Zhao X L, Zhou H, Li J et al. Ultra‑broadband large‑span high‑precision microwave photonic frequency conversion method[J]. Chinese Journal of Lasers, 52, 1009001(2025).

[25] Liu Y C, Yang F, Yang Z C et al. Broadband frequency hopping millimeter-wave generator based on photonic spectrum broadening[C], 1-2(2023).

[26] Liu Y C, Yang F, Yang Z C et al. Ultra-wideband and multi-octave tunable millimeter wave generation based on photonic multiplication and delay-matched heterodyne[J]. Journal of Lightwave Technology, 42, 8109-8116(2024).

[27] Yu X Y, Sun G Q, Zhang F Z et al. Frequency-modulated microwave signal generation by dual-wavelength-injection period-one laser dynamics[J]. Optics Letters, 47, 5921-5924(2022).

[28] Yu X Y, Zhang F Z, Wu B Y et al. Reconfigurable frequency-modulated microwave generation using multi-wavelength optically injected semiconductor laser[C], 1-4(2023).

[29] Sun Y W, Chen J P, Wu G L. Design of synchronization scheme for frequency hopping receiving of fast and large-range microwave photons[J]. Acta Optica Sinica, 42, 1307001(2022).

[30] Kuratani Y, Kadota M. High-speed and low driving voltage LiNbO3 optical switch composed of new structure[C], JThE73-21(2010).

[31] Zhong Y M, Zeng C S, Guo Z G et al. Design and simulation of reconfigurable dual‑output microwave photonic frequency converter[J]. Chinese Journal of Lasers, 50, 1006005(2023).