[1] GHELFI P, LAGHEZZA F, SCOTTI F, et al. A fully photonics-based coherent radar system［J］. Nature, 2014, 507(7492):341-345.

[2] LI Z, LI M, CHI H, et al. Photonic generation of phase-coded millimeter-wave signal with large frequency tunability using a polarization-maintaining fiber Bragg grating［J］. IEEE Microwave and Wireless Components Letters, 2011, 21(12): 694-696.

[3] GAO Y, WEN A, YU Q, et al. Microwave generation with photonic frequency sextupling based on cascaded modulators［J］. IEEE Photonics Technology Letters, 2014, 26(12): 1199-1202.

[4] LI X, ZHAO S, ZHU Z, et al. An optical millimeter-wave generation scheme based on two parallel dual-parallel Mach-Zehnder modulators and polarization multiplexing［J］. Journal of Modern Optics, 2015, 62(18): 1502-1509.

[5] MUTHU K E, RAJA A S, SHABNUGAPRIYA G. Corrigendum to “Frequency16-tupled optical millimeter wave generation using dual cascaded MZMs and 2.5 Gbps RoF transmission” ［Optik: Int. J. Light Electron Opt. 140 (2017) 338–346］［J］. Optik - International Journal for Light and Electron Optics,2017, 140: 338-346.

[6] ZHENG H, WEN A, GAO Y, et al. Photonic frequency sextupling scheme based on two intensity modulators and a Sagnac loop［J］. Microwave & Optical Technology Letters, 2017, 59(4): 853-857.

[7] ZHANG W, WEN A, GAO Y, et al. A simplified filterless photonic frequency octupling scheme based on cascaded modulators［J］. Optica Acta International Journal of Optics, 2016, 64(8): 861-865.

[8] ZHANG W, WEN A, GAO Y, et al. Filterless frequency-octupling mm-wave generation by cascading Sagnac loop and DPMZM［J］. Optics & Laser Technology, 2017, 97: 229-233.

[9] LI W, KONG F, YAO J. Arbitrary microwave waveform generation based on a tunable optoelectronic oscillator［J］. Journal of Lightwave Technology, 2013, 31(23): 3780-3786.

[10] LI X, ZHAO S, ZHANG Y, et al. Generation of a frequency-quadrupled phase-coded signal with large tunability［J］. IEEE Photonics Technology Letters, 2016, 28(18): 1980-1983.

[11] CHI H, YAO J. An approach to photonic generation of high-frequency phase-coded RF pulses［J］. IEEE Photonics Technology Letters, 2007, 19(10): 768-770.

[12] WANG L X, LI W, WANG H, et al. Photonic generation of phase coded microwave pulses using cascaded polarization modulators［J］. IEEE Photonics Technology Letters, 2013, 25(7): 678-681.

[13] ZHANG Y, PAN S. Generation of phase-coded microwave signals using a polarization-modulator-based photonic microwave phase shifter.［J］. Optics Letters, 2013, 38(5): 766-768.

[14] ZHU D, LIU S, PAN S, et al. Photonic generation of widely tunable phase-coded microwave signals based on a dual-parallel polarization modulator［J］. Optics Letters, 2014, 39(13): 3958-61.

[15] XIAO J, ZHANG Z, LI X, et al. High-frequency photonic vector signal generation employing a single phase modulator［J］. IEEE Photonics Journal, 2015, 7(2): 1-6.

[16] CHEN Y, WEN A, ZHANG W. Generation of phase-coded microwave signals through equivalent phase modulation［J］. IEEE Photonics Technology Letters, 2017, 29(16): 1371-1374.

[17] LI Z, LI W, CHI H, et al. Photonic generation of phase-coded microwave signal with large frequency tunability［J］. IEEE Photonics Technology Letters, 2011, 23(11): 712-714.

[18] CHEN W, WEN A, GAO Y, et al. Photonic generation of binary and quaternary phase-coded microwave waveforms with frequency quadrupling［J］. IEEE Photonics Journal, 2016, 8(2): 1-8.