TY - GEN
T1 - Wavelet singular entropy-based feature extraction from a temperature modulated gas sensor
AU - Song, Kai
AU - Wang, Qi
AU - Wang, Bing
AU - Zhang, Hongquan
PY - 2013
Y1 - 2013
N2 - This paper demonstrates that a single thermally-modulated semiconductor gas sensor can discriminate and measure concentrations between two different explosive gases (CH4 and H2) and their mixtures. This method uses a novel feature extraction method, which is based on the wavelet singular entropy (WSE). From the time-frequency domain and energy spectrum perspective, wavelet decomposition coefficients and WSE are extracted as the features from the dynamic response of a single SnO2-based sensor in a rectangular temperature mode. Also, distance criterion as the feature evaluation criteria is employed to determine the optimal wavelet function, decomposition level and wavelet coefficients. Experimental results show that, compared with fast Fourier transform (FFT) and discrete wavelet transform (DWT), the WSE technique is more effective in terms of feature extraction and is highly tolerant to the presence of serious additive noise in the sensor response.
AB - This paper demonstrates that a single thermally-modulated semiconductor gas sensor can discriminate and measure concentrations between two different explosive gases (CH4 and H2) and their mixtures. This method uses a novel feature extraction method, which is based on the wavelet singular entropy (WSE). From the time-frequency domain and energy spectrum perspective, wavelet decomposition coefficients and WSE are extracted as the features from the dynamic response of a single SnO2-based sensor in a rectangular temperature mode. Also, distance criterion as the feature evaluation criteria is employed to determine the optimal wavelet function, decomposition level and wavelet coefficients. Experimental results show that, compared with fast Fourier transform (FFT) and discrete wavelet transform (DWT), the WSE technique is more effective in terms of feature extraction and is highly tolerant to the presence of serious additive noise in the sensor response.
KW - distance criterion
KW - dynamic response
KW - feature extraction
KW - semiconductor gas sensor
KW - temperature modulation
KW - wavelet singular entropy
UR - https://www.scopus.com/pages/publications/84897853739
U2 - 10.1109/ICSensT.2013.6727760
DO - 10.1109/ICSensT.2013.6727760
M3 - 会议稿件
AN - SCOPUS:84897853739
SN - 9781467352215
T3 - Proceedings of the International Conference on Sensing Technology, ICST
SP - 786
EP - 790
BT - 2013 7th International Conference on Sensing Technology, ICST 2013
T2 - 2013 7th International Conference on Sensing Technology, ICST 2013
Y2 - 3 December 2013 through 5 December 2013
ER -