高精度动平衡测量中自适应滤波技术的应用研究

Research of Adaptive Filtering Technology for High Precision Dynamic Balancing Measurement

针对动平衡测量中的具体实践 ,发展了一种能够在强变频率结构背景噪声干扰下确保高精度提取幅值和相位的自适应消噪方法。同时提出了分段变步长的策略和初始值选取措施 ,使该方法具有较高的效率及可靠性。实验结果和在实际动平衡测量系统上应用表明 :该文所发展的方法适合动平衡测量应用 ,完全满足精度和实时性的要求 ,具有较高的实用价值。

An adaptive noise cancellation method, which points to the particular circumstance of dynamic balancing, is developed. This method can be used to abstract the amplitude and phase high precisely in the environment of strong background noise with variable frequency structure. Meantime, a strategy of subsection variable step size is advanced, which makes this method has high efficiency and reliability. The result of experiments and the application in practical dynamic balancing measurement system indicate the presented method is fit to apply in dynamic balancing measurement, satisfies the requirement of high precision and better real time performance, and has huge capacity for application.