noise susceptibility factors in block 309 each of the parameters included in the spice model for the specific receiver can be modified to determine which parameters actually affect the noise characteristics once the noise susceptibility factor is modified connector 315 returns to the run spice program for receiver noise characteristics block 310 to recalculate the noise characteristics for the updated parameters for the receiver this interaction between run spice program for receiver noise characteristics block 310 and modified noise susceptibility factor 311 is repeated until each of the applicable parameters are thoroughly tested to determine the sensitivity of the noise characteristics on changes in the parameters once these sensitivities are determined modify receiver characteristics block 312 is encountered which modifies the receiver characteristics to determine the new noise susceptibility factors for the updated receiver once the receiver characteristics are changed link 316 returns to run spice program for the receiver noise characteristics 310 once again run spice program for receiver noise characteristics block 310 and modify noise susceptibility factor block 311 through link 315 together fully analyze the noise characteristics of the updated receiver for changes in the noise susceptibility factors this process is continued until this type of receiver is thoroughly analyzed once the receiver is thoroughly analyzed the results are stored in a 3 dimensional matrix for the receiver in block 313 once noise characteristics as a function of noise susceptibility factors are determined and stored fig4 allows these results to be used to identify the noise characteristics for a specific receiver flow 400 consists of specify component layout 401 identified coupled pairs of components 402 identify driver receiver and interconnection 403 identify receiver characteristics and determine noise susceptibility factors 404 access.