摘要
为了提高超宽带(Ultra Wide Band,UWB)系统的抗干扰性能,针对脉冲超宽带(IR-UWB)系统,从波形设计的角度提出引入改进Hermite脉冲进行数据传输的思想,该方案采用已调已修正Hermite脉冲(MMHP)的波形调制(PSM)和波形跳变(PSH)用以对抗UWB系统中存在的干扰问题。仿真结果表明,该方案能有效地减小多用户干扰和码间干扰的影响,并对解决UWB系统和既存窄带系统间的共存问题有一定帮助。
For increasing the anti-interference performance of UWB system, this paper introduces an improved Hermite Pulse in the data transmission of IR-UWB system from the viewpoint of waveform design, and we propose Pulse Shape Modulation （PSM） and Pulse Shape Hoping （PSH） of the Modulated and Modified Hermite Pulses （MMHP） in order to reduce interference to UWB system. The simulation results show that the effects of Multi-User Interference （MUI） and Inter- Symbol Interference （ISI） are reduced effectively; the problem of coexistence between UWB system and other existed Narrow-Band systems can be helped to solve.
出处
《长春理工大学学报（自然科学版）》
2008年第1期102-106,共5页
Journal of Changchun University of Science and Technology(Natural Science Edition)
基金
国家自然科学基金资助项目(50475008)
