Patent ID: 7991590

Claim:
An adaptive real-time analysis method for dynamic signals produced by rotary machines, comprising: providing a machine fault diagnosing device and system; using a digital signal processor (DSP) of the machine fault diagnosing device and system to perform converting a structure equation y ⁡ ( n ) = ∑ k ∈ j ⁢ ⁢ a k ⁡ ( n ) ⁢ θ k ⁡ ( n ) + ξ ⁡ ( n ) and a data equation ∇ s a k (n)=ψ k (n), s=2 of conventional Vold-Kalman filtering (VKF) order tracking to a process equation and a measurement equation of Kalman filtering, where y(n) is a measured signal, a k (n) is an envelope of a k th -order signal, θ k (n) is a k th -order carrier signal, ξ(n) is an order component not to be tracked and noise in the measured signal, and ψ k (n) denotes a higher-degree term in a k (n), generated by a noise and other signals; and computing by means of a one-step prediction scheme to obtain a tracked order component or multiple order components.