Using power cepstrum the weaker periodic signal can be recognized, and the sidefrequency of modulation signal can be recognized effectively.
倒频谱可以识别信号中较弱的周期成分，并对识别调制信号的边频县有特殊的效果。
2
The analysis indicates that the inverse spectrum has a noticeable feature to distinguish the influence of the sidefrequency and identify the transfer function of the testing system.
分析表明倒频谱在识别边频及测试系统传递函数的影响方面具有显著的特点。
3
The analysis indicates that the inverse spectrum has a noticeable feature to distinguish the influence of the sidefrequency as well as the transfer function in measuring test system.