[1] [1] Sun Hongbo, Lu Yilong, Liu Guosui. Ultra-wideband technology and random signal radar: An ideal combination[J]. IEEE Aerospace and Electronic Systems Magazine, 2003, 18(11): 3-7.

[2] [2] Lin Fanyi, Liu Jiaming. Chaotic radar using nonlinear laser dynamics[J]. IEEE Journal of Quantum Electronics, 2004, 40(6): 815-820.

[3] [3] Narayanan Ram M. Through-wall radar imaging using UWB noise waveforms[J]. Journal of the Franklin Institute, 2008, 345(6): 659- 678.

[4] [4] Lai Cchienping, Narayanan Ram M. Ultra-wideband random noise radar design for through-wall surveillance[J]. IEEE Transactions on Aerospace and Electronic Systems, 2010, 46(4): 1716-1730.

[5] [5] Xu Xiaojian, Narayanan Ram M. FOPEN SAR imaging using UWB step-frequency and random noise waveforms[J]. IEEE Transactions on Aerospace and Electronic Systems, 2001, 37(4): 1287-1300.

[6] [6] Sachs J, Peyerl P, Zetik R, et al.. M-sequence ultra-wideband-radar: State of development and applications[C]. IEEE Proceedings of the International Radar Conference, 2003: 224-229.

[7] [7] Aftanas Michal, Zaikov Egor, Drutarovsky Milos, et al.. Throughwall imaging of the objects scanned by M-sequence UWB radar system [C]. IEEE 18th International Conference Radioelektronika, 2008: 1-4.

[8] [8] Grodensky Daniel, Kravitz Daniel, Zadok Avi. Ultra-wideband microwave-photonic noise radar based on optical waveform generation [J]. IEEE Photonics Technology Letters, 2012, 24(10): 839-841.

[9] [9] Zheng Jianyu, Wang Hui, Fu Jianbin, et al.. Fiber-distributed ultra-wideband noise radar with steerable power spectrum and colorless base station[J]. Opt Express, 2014, 22(5): 4896-4907.

[10] [10] Jiang T, Long J, Wang Z, et al.. Experimental investigation of a direct chaotic signal radar with colpittsoscillator[J]. Journal of Electromagnetic Waves and Applications, 2010, 24(8-9): 1229-1239.

[11] [11] Qiao S, Shi Z G, Jiang T, et al.. A new architecture of UWB radar utilizing microwave chaotic signals and chaos synchronization[J]. Progress In Electromagnetics Research, 2007, 75: 225-237.

[12] [12] Zhang Mingliang, Ji Yongning, Zhang Yongning, et al.. Remote radar based on chaos generation and radio over fiber[J]. IEEE Photonics Journal, 2014, 6(5): 7902412.

[13] [13] Ji Yongning, Zhang Mingjiang, Wang Yuncai, et al.. Microwave-photonic sensor for remote water-level monitoring based on chaotic laser [J]. International Journal of Bifurcation and Chaos, 2014, 24(3): 1450032.

[14] [14] Lin Fanyi, Liu Jiaming. Ambiguity functions of laser-based chaotic radar[J]. IEEE Journal of Quantum Electronics, 2004, 40(12): 1732- 1738.

[15] [15] Tama evic ius A, Mykolaitis G, Bumelienè S, et al.. Chaotic Colpitts oscillator for the ultrahigh frequency range[J]. Nonlinear Dynamics, 2006, 44(1): 159-165.

[16] [16] Li Jingxia, Wang Yuncai, Ma Fuchang. Experimental demonstration of 1.5 GHz chaos generation using an improved Colpitts oscillator [J]. Nonlinear Dynamics, 2013, 72(3): 575-580.

[17] [17] Uchida Atsushi, HeilTilmann, Liu Yun, et al.. High-frequency broad-band signal generation using a semiconductor laser with a chaotic optical injection[J]. IEEE Journal of Quantum Electronics, 2003, 39(11): 1462-1467.

[18] [18] Wang Anbang, Wang Yuncai, He Hucheng. Enhancing the bandwidth of the optical chaotic signal generated by a semiconductor laser with optical feedback[J]. IEEE Photonics Technology Letters, 2008, 20(19): 1633-1635.

[19] [19] Xue Pingping, Yang Lingzhen, Zhang Jianzhong, et al.. Dynamic characteristics of semiconductor ring laser with high bias current[J]. Chinese J Lasers, 2015, 42(2): 0202002.

[20] [20] Zhang Li, Wang Anbang, Li Kai, et al.. Fiber fault visible chaotic optical time domain reflectometry measurement method[J]. Chinese J Lasers, 2013, 40(3): 0308007.

[21] [21] Qiao Shan, Jiang Tao, Ran Lixin, et al.. Ultra wide band noise signal radar utilizing microwave chaotic signals and chaos synchronization [J]. Piers Online, 2007, 3(8): 1326-1329.

[22] [22] Pan Xingmao, Wu Zhengmao, Tang Xi, et al.. Chaotic synchromization and communication in mesh network based on mutually coupled semiconductor lasers[J]. Chinese J Lasers, 2013, 40(12): 1202005.

[23] [23] Roman J E, Nichols L T, Wiliams K J, et al.. Fiber-optic remoting of an ultrahigh dynamic range radar[J]. IEEE Transactions on Microwave Theory and Techniques, 1998, 46(12): 2317-2323.

[24] [24] Ran M, Lembrikov B I, Ben Ezra Y. Ultra-wideband radio-over-optical fiber concepts, technologies and applications[J]. IEEE Photonics Journal, 2010, 2(1): 36-48.

[25] [25] Wang Hong, Narayanan Ram M, Zhou Zhengou. Through wall imaging based on electromagnetic modeling using UWB noise waveform [C]. 2009 IEEE Antennas and Propagation Society International Symposium, 2009, 8: 802-805.

[26] [26] Lin F Y, Liu J M. Nonlinear dynamical characteristics of an optically injected semiconductor laser subject to optoelectronic feedback[J]. Optics Communications, 2003, 221(1-3): 173-180.

[27] [27] Piccardi Massimo. Background subtraction techniques: A review[C]. 2004 IEEE International Conference on Systems, Man and Cybernetics, 2004, 4: 3099-3104.

[28] [28] Ahmad Fauzia, Narayanan Ram M. Conventional and emerging waveforms for detection and imaging of targets behind walls[J]. Throughthe- Wall Radar Imaging, 2011: 157-184.