摘要：Order analysis is regarded as one of the most significant method for monitoring and analyzing rotational machinery for the phenomenon of ' frequency smear'.However,the order analysis based on resampling is a signal processingwhich converts the constant time interval sampling into constant angle interval sampling,while with the variety of the rotational speed.The superiority of the order analysis is investigatedon implement of order analysis.Andthrough comparing the advantage and disadvantage between spectrum and order analysis,the paper will discuss the order analysis form a deep perspective.

单位：Beijing; Information; Science; &; Technology; University