MITOLA J, MAGUIRE G Q. Cognitive radio: making software radios more personal[J]. IEEE Personal Communications, 1999, 6(4): 13-18.？
[2]
MOY C, BISIAUX A, PAQUELET S. An ultra？wide band umbilical cord for cognitive radio systems[C]// Proceedings of IEEE International Symposium on Personal, Indoor and Mobile Radio Communications.Berlin, Germany, 2005: 775-779.？
[3]
GRANELLI F, ZHANG Honggang. Cognitive ultra wide band radio: a research vision and its open challenges[C]// Proceedings of IEEE 2nd International Workshop Networking with Ultra Wide Band Workshop on Ultra Wide Band for Sensor Networks. Rome, Italy, 2005: 55-59.？
梁朝晖，周正. 基于小波的超宽带脉冲波形设计[J]. 北京邮电大学学报，2005，28(3)：43-45.？ LIANG Zhaohui, ZHOU Zheng. Wavelet？based pulse design for ultra？wideband system[J]. Journal of Beijing University of Posts and Telecommunications, 2005, 28(3): 43-45.？
[6]
GHAVAMI M, MICHAEL L B, HARUYAMA S, et al. A novel UWB pulse shape modulation system[J]. Wireless Personal Communications, 2002, 23(1): 105-120.？
[7]
SLEPIAN D, POLLACK H O. Prolate spheroidal wave functions, Fourier analysis, and uncertainty[J]. Bell System Tech Journal, 1961, 40(1): 43-64.？
[8]
JITSUMATSU Y, KOHDA T. Prolate spheroidal wave functions induce Gaussian chip waveforms[C]// Proceedings of IEEE International Symposium on Information Theory Conference. Toronto, Canada, 2008: 6-11.？
[9]
贺鹏飞.超宽带无线通信关键技术研究[D].北京:北京邮电大学，2007：28-43.？ HE Pengfei. Working out the key technologies of ultra wide band wireless communications[D]. Beijing:Beijing University of Posts and Telecommunications, 2007:28-43.？
[10]
WU Xianren, TIAN Zhi, DAVIDSON T N. Optimal waveform design for UWB radio[J]. IEEE Transactions on Signal Processing, 2006, 54(61): 2009-2012.？
[11]
朱刚.超宽带(UWB)原理与干扰[M].北京：清华大学出版社，2009：92-115.？
[12]
岳光荣，葛利嘉.超宽带无线电抗干扰性能研究[J]. 电子与系统学报， 2002，24(11)：1544-1550.？ YU Guangrong, GE Lijia. System performance research of ultra-wide bandwidth radio in jamming environment[J]. Journal of Electronics and Information Technology, 2002, 24(11): 1544-1550.？
