Order tracking by discrete Gabor expansion

被引：33

作者：

Shao, H ^{[1
]}

Jin, W ^{[1
]}

Qian, S ^{[1
]}

机构：

[1] Natl Instruments, DSP Grp, Austin, TX 78759 USA

来源：

IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT | 2003年 / 52卷 / 03期

关键词：

Gabor expansion; harmonic analysis; order analysis; order tracking; short-time Fourier transform;

D O I：

10.1109/TIM.2003.814670

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper, the discrete Gabor expansion is applied to order analysis-a special set of time-varying harmonic analysis. Here, the term orders, widely used in the automobile industry, refers to frequencies that are integer (or fractional) multiples of a single rotational speed. Since the rotational speed varies with time, the classical analysis techniques, such as harmonic analysis, cannot be directly used for order analysis. Compared to currently used techniques, such as the adaptive filter based approaches (e.g., Kalman filter), the method presented in this paper is not only more robust and easier to implement, but also offers more insight into the physical process.

引用

页码：754 / 761

页数：8

共 18 条

[1]

ALBRIGHT MF, 2001, 2001011471 SAE

[2] A measurement method based on a modified version of the Chirplet transform for instantaneous frequency estimation [J].