论文部分内容阅读
双绞线的螺距误差会直接影响其抗干扰水平,螺距误差的随机性会造成双绞线串扰预测的不确定性.通过双绞线制作原理的分析,利用制作参数可以较准确得到任意双绞线螺距误差的概率密度.采取等弧度离散法和广义多端口网络的概念,快速建立非均匀螺距双绞线的频域串扰模型,得到感性耦合和螺距误差的关系.基于螺距误差的概率密度函数,可以有效分析任意双绞线串扰的统计特性.仿真结果表明双绞线制作参数转轴角速度的均值和方差是影响双绞线感性耦合大小的关键因素,在双绞线制作过程中必须予以考虑,以保证双绞线的抗干扰能力.
The pitch error of twisted pair will directly affect its anti-interference level, the randomness of pitch error will cause the uncertainty of the prediction of twisted pair crosstalk.Through the analysis of the principle of twisted pair production, the arbitrary twists Probability Density of Line Pitch Errors The frequency-domain crosstalk model of non-uniform pitch twisted pair is established quickly by adopting the concepts of equi-radian discretization and generalized multi-port network, and the relationship between inductive coupling and pitch error is obtained.The probability density function based on pitch error , Which can effectively analyze the statistical characteristics of arbitrary twisted pair crosstalk.The simulation results show that the mean and variance of the angular velocity of the twisted pair make the key factor influencing the size of the inductive coupling of the twisted pair and must be considered during the production of the twisted pair, To ensure the ability of anti-interference twisted pair.