摘要
移动衰落信道中正交频分复用(OFDM)系统的子载波间干扰(ICI)是引起系统性能下降的主要因素。通过对时变信道中ICI的分析,给出了DVB-T/H系统中的一种信道估计和ICI消除算法,并进一步提出改进算法。最后经过仿真并在FPGA上实现,并通过接收机系统的联调与测试,验证了设计的合理性与可靠性。
Interchannel interference（ICI） is a dominant source of error for OFDM systems in mobile dispersive fading channels. This paper provides an ICI analysis in time-variant multipath channels. Based on this analysis, the paper proposes an efficient channel estimation and ICI mitigation method for DVB-T/H system and further proposes and improved algorithm. The whole receiver system based on FPGA has been successfully aligned and debugged. The rationality and robustness of the design has been verified.
出处
《电视技术》
北大核心
2005年第8期28-30,共3页
Video Engineering
