应用复杂陷波器精确消除经纬仪机械谐振方法的研究

Research on Method of Eliminating Accurately Mechanical Resonance Frequency of the Theodolite by Complex Falling Filter

为了精确消除机械谐振频率对经纬仪系统性能的影响,应用了复杂型的数字陷波器,利用其幅频特性与实际系统幅频特性相对比的方法,精确消除了机械谐振。实验表明:该方法可以做到在对经纬仪低频段特性影响较小的情况下,精确消除机械谐振,提高经纬仪的闭环带宽及其稳定性。

To eliminating accurately influence of mechanical resonance frequency on theodolite performance. A complex falling filter is applied and mechanical resonance frequency by comparing magnitude-frequency characteristic of system and falling filter is eliminated accurately. Experiments show that the method can eliminate accurately mechanical resonance frequency and improve bandwidth and stability of the theodolite.