| 摘要 |
<p>A noise checking device comprising a model making section (3) for making a simulation model of a circuit part relating to an objective wiring, a simulation section (4) for calculating the signal waveform propagated through the objective wiring by simulation using the simulation model and calculating the noise waveform superposed on the signal waveform for each kind of noise, a noise waveform synthesizing section (5) for generating a synthesized noise waveform by combining the signal waveform and the noise waveform in consideration of the timing at which the noise waveform is generated, and a noise checking section (6) for checking noise based on the synthesized noise waveform, whereby for example, the precision of noise calculation and noise checking performed in designing an electronic circuit is improved, the time taken to perform noise checking is greatly shortened, and the work efficiency is improved by reduction of the man-hour of the designer in the case of noise analysis.</p> |
