摘要
随着信号传输速率的不断增加,电容耦合连接器中的符号间干扰将愈加严重,传统的接收端均衡在减少接收端脉冲时延的同时也降低了脉冲幅值,从而在接收端不能有效地分离脉冲信号和噪声。在分析脉冲时延和幅值大小的影响因素的基础上,提出了一种驱动端均衡方案及准确计算均衡比例的方法,在增强驱动端信号的高频成分的同时可以减少其低频成分。实验结果显示,使用该均衡方案,能有效减小电容耦合连接器的符号间干扰,增加接收端脉冲信号的幅值,提高信号的传输速率。
With the increasing of signal transmission rate, capacitive coupling connector will be subjected to excessive inter-symbol interference. The traditional receiver-side equalization can reduce the time delay of receiver-side pulse, but the amplitude value of pulse is also reduced, so the receiver-side can＇t effectively separate the pulse signal and noise. To solve this problem, a driver-side equalization scheme was proposed by analyzing the factors that impacted on pulse time delay and peak magnitude, and the equalization ratio calculation method of this scheme was also given. The equalization scheme was implemented through select appropriate equalization ratio to increase high frequency components of signal and reduce the low frequency components of signal at the driver-side at the drive-side to reduce the inter-symbol interference and improve pulse magnitude. Simulation results show that using the driver-side equalization scheme can effectively eliminate inter-symbol interference, increase receiver-side pulse amplitude value and improve signal transmission rate.
出处
《系统仿真学报》
CAS
CSCD
北大核心
2014年第5期1138-1142,共5页
Journal of System Simulation
基金
国家自然科学基金(60871072
61301067)
关键词
电容耦合连接器
均衡比例
符号间干扰
反相不归零码
capacitive coupling connector
equalization ratio
inter-symbol interference
non-return to zero
