DocumentCode :
3523326
Title :
New discrete inverse S transform with least square error in filtering
Author :
Pei, Soo-Chang ; Wang, Pai-Wei
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei
fYear :
2009
fDate :
19-24 April 2009
Firstpage :
2989
Lastpage :
2992
Abstract :
The S transform is a useful linear time-frequency distribution and has been applied to various fields. Since the inverse S transform is an over-determined problem, there exist several different algorithms, which result in different filtering effects. This paper models the discrete S transform in matrix form and proposes a new inverse S transform algorithm with least square error in filters. This paper also compares the new inverse S transform with the previous ones.
Keywords :
filtering theory; least squares approximations; matrix algebra; discrete inverse S transform; least square error; linear time-frequency distribution; Discrete transforms; Least squares methods; S transform; time-frequency analysis; time-varying filter;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Acoustics, Speech and Signal Processing, 2009. ICASSP 2009. IEEE International Conference on
Conference_Location :
Taipei
ISSN :
1520-6149
Print_ISBN :
978-1-4244-2353-8
Electronic_ISBN :
1520-6149
Type :
conf
DOI :
10.1109/ICASSP.2009.4960252
Filename :
4960252
Link To Document :
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