摘要
从数值逼近理论出发按照Chebyshev最佳一致逼近准则将超宽带信号设计成符合FCC频谱模板的信号,与同类方法相比更容易控制设计精度,具有更高的频谱利用率,改善了UWB通信系统的性能,方法适用于不同的频谱模板。在理论分析的基础上对方法进行了阐述和模拟仿真,仿真结果验证了该超宽带脉冲信号设计方法的有效性。
A novel design method for ultra-wideband pulse was presented based on numerical approximation theory. With Chebyshev best uniform approximation rule, the ultra-wideband signal was conformed to FCC spectral mask, which could reduce the interference with other wireless systems and improve the performance of UWB communication system. Comparing with other methods, it is easy to control design precision, and uses spectrum more sufficiently. It is also applicable to different spectral mask. After theoretical analysis, the method was fully expatiated on. The simulation result shows that this method is effective.
出处
《计算机科学》
CSCD
北大核心
2008年第10期143-144,共2页
Computer Science
基金
国家自然科学基金资助项目(项目编号60506055)
关键词
超宽带
最佳一致逼近
脉冲无线电
功率谱密度
Ultra-wideband, Best uniform approximation, Pulse radio, Power spectral density
