Crosstalk profile ? using the measured near-end loop noise PSD, an estimate can be made of the type and number of crosstalkers present. Again, this is a multi-variate optimization problem.

• 串扰概图－使用已测的近端环路噪声PSD，就可以估计当前串扰的类型和数量。这也是一个多变量的最优化问题。