A Comparison of Frequency-Domain Approach and Time-Domain Approach: A Case Study of Fault Analysis of Analog Circuits

摘要

There have been considerable efforts expended in analog fault analysis. Most of them employ frequency-domain approach, i.e., diagnosing faulty components from measured transfer function, while few use time-domain approach to isolate faults by means of Markov parameters. Theoretically, both approaches are still under development and all seem feasible. It is the purpose of this report to compare these two approaches numerically by simulation on RC ladders. In this example, it is shown that the time-domain approach is far better than the frequency-domain approach. (Author)