机构地区: 西安电子科技大学通信工程学院综合业务网理论与关键技术国家重点实验室
出 处: 《电路与系统学报》 2003年第1期89-93,共5页
摘 要: 本文提出了宽带数字电视地面广播(BDB-T)系统的同步及信道估计与均衡方案,在此基础上研究分析 了公共相位误差(CPE)对系统性能的影响,给出从同步和均衡两个方面对CPE进行校正的方法;设计出基于FPGA 的CPE校正电路。通过BDB-T功能样机的现场测试,表明了校正方法的正确性及其电路的可靠性。 A novel scheme of synchronization together with channel estimation and equalization scheme for BDB-T system is proposed. The effects of Common Phase Error (CPE) on system performance are analyzed. Methods for correcting CPE in both synchronization and equalization procedures are presented, and the correspondent FPGA based CPE correction circuit has been developed. The result of field test on the BDB-T functional prototype proved the correction and reliability of proposed methods with their associated circuits.