Prediction of Crosstalk Probability Distribution in Cable Bundles
Zhang Zhao1,Wang Shishan1,Zhao Liang1,Zhao Bo1,2
1.Jiangsu Key Laboratory of New Energy Generation and Power Conversion Nanjing University of Aeronautics & Astronautics Nanjing 210016 China 2.Jiangsu Research Institute of Metrology Nanjing 210023 China
Abstract：Crosstalk is a kind of mutual electromagnetic interference (EMI) among transmission lines in electric or electronic system, which often leads to a low reliability of the system. As typical multiconductor transmission lines (MTLs), cable bundles have a prominent problem of crosstalk. Considering the uncertainty of the position of the wires in cable bundles, a method for predicting the probability distribution of crosstalk in cable bundles is proposed in this paper. Assuming that the cross-section is fixed, the cable bundle is divided into N segments. Then the distribution of electromagnetic parameters of a single segment is calculated, and the probability distribution of electromagnetic parameters of the whole cable bundle is obtained by convolution algorithm. Based on Monte Carlo method, the probability distribution of crosstalk is obtained according to the MTLs theory, which can help the designer to find potential crosstalk problems and to evaluate the reliability of system with influence. In order to acquire appropriate segement number N, an emprical formula according to the degree of twist is proposed. For a specific example, its simulation and experiment are both carried out. The experimental results show that the number of N should be commensurate with the degree of twist. What′s more, a higher twisting degree will bring the concentration of probability distribution, which means there is an averaging tendency.
张昭,王世山,赵亮,赵波. 多导体线束内串扰概率分布的预测[J]. 电工技术学报, 2017, 32(7): 204-214.
Zhang Zhao,Wang Shishan,Zhao Liang,Zhao Bo. Prediction of Crosstalk Probability Distribution in Cable Bundles. Transactions of China Electrotechnical Society, 2017, 32(7): 204-214.
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2017, Vol. 32 
