The Denoising Method for Transient Speed Signal of Diesel Engine

Abstract:

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A new denoising method for the diesel engine transient speed signal was proposed, especially for the signal seriously corrupted by impulsive noises. This method takes two steps. The first step is to do impulsive noise removing. An improved differential rank impulse detector was used to do impulsive noise detection in this paper. After the impulsive noise was detected, it was replaced by the median value of the window it was in. Then the second step low pass filtering is taking on. Experiments show that the proposed method could remove the noise of the acquired diesel transient speed signals effectively, the denoised signal could reflect the real working conditions of the diesel engine.

Info:

Periodical:

Advanced Materials Research (Volumes 291-294)

Edited by:

Yungang Li, Pengcheng Wang, Liqun Ai, Xiaoming Sang and Jinglong Bu

Pages:

2081-2084

DOI:

10.4028/www.scientific.net/AMR.291-294.2081

Citation:

J. F. Pan and Y. Zhang, "The Denoising Method for Transient Speed Signal of Diesel Engine", Advanced Materials Research, Vols. 291-294, pp. 2081-2084, 2011

Online since:

July 2011

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Price:

$38.00

[1] Jianqiu Li, Minggao Ouyang, Momentary Speed Analysis or Automotive Engines Using Wavelet, China Mechanical Engineering. vol. 10, p.552–555, 1999. In Chinese.

[2] Chongqing Hu, Aihua Li, Chunhong Zhu, Yu Zhang, Misfire Detection Based on Statistical Analysis of Transient Engine Speed, , Transction of CSICE. vol. 27, p.446–451, 2009. In Chinese.

[3] Wei Du, Fushui Liu, Correlation between Fluctuation of Speed and Combustion Nonuniformity in a Diesel Engi ne, Transactions of the Chinese Society for Agricultural Machinery. vol. 24, p.17–20, 2, 2010. In Chinese.

[4] Xiaofeng Liu, Lin Bo, Shuren Qin, Rotating speed-based variable window STFT, Jounal of Vibration abd Shock. vol. 29, p.27–29, 58, 2, 2010. In Chinese.

[5] Igor Aizenberg, Effective Impulse Detector based on Rank-Order Criteria, IEEE SignalL Processing Letters, vol. 11, pp.363-366, 3, (2004).

DOI: 10.1109/lsp.2003.822925

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