摘要
从OFDM系统子载波正交性要求出发,讨论了数字成形滤波器阶数有限效应。通过分析、仿真,定量描述了数字成形滤波器阶数有限效应对成形滤波器频谱的扩展;并据此提出了抑制数字成形滤波器阶数有限效应的措施。
In view of orthogonality between sub- carriers of OFDM system, effect of the finite order of digit shaping filter is discussed in this paper. Based on analysis and simulation,the spread spectrum of shaping impulse,caused by the effect,is described quantitatively. Then the methods to suppress the effect are suggested.
出处
《现代电子技术》
2006年第16期164-165,共2页
Modern Electronics Technique
