[1] [1] Morvan L, Lai N D, Dolfi D, et al. Building blocks for a two-frequency laser lidar-radar: a preliminary study［J］. Applied Optics, 2002, 41(27): 5702-5712.

[2] [2] Li Lei, Zhao Changming, Gao Lan, et al. Laser detection by electronic instead of optical using two-frequency laser［J］. Acta Optica Sinica, 2007, 27(2): 249-252.

[3] [3] Li Yanhui, Wu Zhensen. Range Doppler detection based on the pulsed two-frequency laser［J］. Journal of Xidian University, 2011, 38(3): 159-163.

[4] [4] Jiang Chenghao, Yang Jinhua, Zhang Lijuan, et al. High-precision phase-shift laser range finder system based on laser beat-frequency［J］. Acta Photonica Sinica, 2014, 43(9): 0912006.

[5] [5] Wang S, Yang S H, Wu X, et al. Experimental study on influence of atmospheric turbulence on coherence of dual-frequency laser［J］. Chinese Physics Letters, 2010, 27(8): 084202.

[6] [6] Zheng Z, Zhao C M, Zhang H Y, et al. Phase noise reduction by using dual-frequency laser in coherent detection［J］. Optics & Laser Technology, 2016, 80: 169-175.

[7] [7] Zhang Haiyang, Zhao Changming, Yang Suhui. The methods of decreasing the phase noise influence in micro-Doppler ladar［J］. Acta Photonica Sinica, 2011, 40(5): 753-757.

[8] [8] Moslehi B. Noise power spectra of optical two-beam interferometers induced by the laser phase noise［J］. Journal of Lightwave Technology, 1986, 4(11): 1704-1710.

[9] [9] Arie A, Tur M. Phase-induced intensity noise in optical interferometers excited by semiconductor lasers with non-Lorentzian lineshapes［J］. Journal of Lightwave Technology, 1990, 8(1): 1-6.

[10] [10] Salehi M R, Cabon B. Theoretical and experimental analysis of influence of phase-to-intensity noise conversion in interferometric systems［J］. Journal of Lightwave Technology, 2004, 22(6): 1510-1518.

[11] [11] Salehi M R, Cabon B. Novel model of FM-noise conversion in a UMZI using RF external phase modulation of lasers: theoretical and experimental results［J］. Optics Communications, 2006, 266(1): 136-141.

[12] [12] Li Min, Hong Weining, Qian Liangcun, et al. Analysis on the interference of phase noise of source of signal to noise ratio in interferometric sensor system［J］. Journal of Yangtze University (Natural Science Edition), 2012, 9(8): 1-2.

[13] [13] Rowe H E. Signals and noise in communication system［M］. London: D. van Nostrand Co., Ltd., 1966: 535-581.