机构地区: 华南理工大学电子与信息学院
出 处: 《电视技术》 2004年第6期13-15,共3页
摘 要: 提出了一种基于差分调制消除地面数字电视广播OFDM系统子载波间干扰的新方法。仿真结果表明:差分调制能够有效消除频率偏移造成的OFDM系统子载波间的干扰,并且计算简单,不牺牲系统的带宽利用效率,具有很好的实用性。 A schation scheme for reducing the intercarrier interference between the subcarriers of OFDM Terrestrial Digital TV Broadcast system based on differential modulation is proposed. The simulation shows that the differential moduleme can reduce the intercarrier interference effectively and needs little calculation time. It doesn't cause any reduction in bandwidth efficiency. So it is practicable