9. The method of claim 8 , wherein normalizing the modeled impairment correlation terms comprises scaling the modeled impairment correlation terms to obtain a unit impairment-power contribution for individual ones of the modeled impairment correlation terms.
9. The method of claim 8 , wherein normalizing the modeled impairment correlation terms comprises scaling the modeled impairment correlation terms to obtain a unit impairment-power contribution for individual ones of the modeled impairment correlation terms. 10. The method of claim 9 , wherein scaling the modeled impairment correlation terms to obtain a unit impairment-power contribution for individual ones of the modeled impairment correlation terms comprises dividing individual ones of the modeled impairment correlation terms by their corresponding trace.