Design and Application of Dynamic Compensating Digital Filter

摘要

The design of "V" type digital filter used for compensating the dynamic performance of sensor, in which the zero and pole point of such filter are very close are presented. The modal analysis of its applicability and localization comes to a conclusion that firstly, the "V" filter is only applicable to a compensated system with on sparse mode, secondly, although this type of "V" filter counteracts the pole point of the original system, but it produces a new pole point that is very close to the old one. Therefore, the characteristic of an ideal dynamic digital filter is established. The improvement of dynamic performance achieved by a "V" type filter is not as good as that achieved by an ideal dynamic compensation digital filter.