| 摘要 |
The present invention discloses a dynamic period detecting method and detector, which utilizes a zero-crossing detecting method to detect a rough estimated period and then uses a weighting-average filtering method to eliminate noises to obtain an accurate period P. Since the average number for generating weight in the weighting-average filtering method is dynamically adjusted according to the period variation, the detecting method can detect the period correctly and fast, and save a lot of storage space and computation time.
|
