Crosstalk on Cables: A Communication Theoretic Approach

The crosstalk induced in a particular cable by other nearby current carrying cables is of significance in predicting the behavior of systems using such cables. Unfortunately, computational difficulties and ignorance of the actual problem geometry (as opposed to the nominal geometry) often make the calculation of the crosstalk uncertain or impossible. In this paper a method is devised for expressing the rms value of the crosstalk, and the resulting expression is investigated for a particular class of cables. The models proposed are applicable only to long low-frequency cables constructed of nonmagnetic materials. Electrostatic effects are not considered.