Detection of the fetal electrocardiogram (FECG) from the maternal cutaneous electrode recordings ... more Detection of the fetal electrocardiogram (FECG) from the maternal cutaneous electrode recordings is an important but hard task. To extract the FECG, two important blind source extraction algorithms have been proposed by Barros and Zhi-lin Zhang which using the periodicity and kurtosis, respectively. Barros' algorithm is sensitive for the estimation error of the period of the FECG and Zhi-lin Zhang's algorithm requires precise estimation of the kurtosis range of the FECG. In this work, a novel blind source extraction algorithm combing periodicity and kurtosis is proposed to conquer the two flaws of the BSE algorithm of Barros' and Zhang's. Experiments on real world FECG illustrate the validity and better performance of the proposed algorithm.
A new approach for defining a fuzzy derivative is introduced and a comparison with a previous app... more A new approach for defining a fuzzy derivative is introduced and a comparison with a previous approach illustrates the advantageous of the new method. A first order fuzzy differential equation and a fuzzy Cauchy problem are defined and sufficient conditions for existence and uniqueness of solutions to fuzzy initial-value problems are given. Solutions are calculated for simple examples
Using the embedding approach a linear fuzzy system is defined and investigated. Sufficient condit... more Using the embedding approach a linear fuzzy system is defined and investigated. Sufficient conditions for the existence of a unique fuzzy solution are derived and a numerical procedure for calculating it is proposed and illustrated with examples
... Harbin Institute of Technology, Harbin 150006, PR China Wang Shuli Department of Mathematics,... more ... Harbin Institute of Technology, Harbin 150006, PR China Wang Shuli Department of Mathematics, Taiyuan Institute of Technology, Taiyuan 030000, PR China Ma Ming Department of ... S [aiO-nol, tx(AnAio)]>S[aio, lx(AnAio)]- e. It follows that [ f dtx <S[ai 'tz(AnAi )l+ le<~S Oli no [ 1 ...
Detection of the fetal electrocardiogram (FECG) from the maternal cutaneous electrode recordings ... more Detection of the fetal electrocardiogram (FECG) from the maternal cutaneous electrode recordings is an important but hard task. To extract the FECG, two important blind source extraction algorithms have been proposed by Barros and Zhi-lin Zhang which using the periodicity and kurtosis, respectively. Barros' algorithm is sensitive for the estimation error of the period of the FECG and Zhi-lin Zhang's algorithm requires precise estimation of the kurtosis range of the FECG. In this work, a novel blind source extraction algorithm combing periodicity and kurtosis is proposed to conquer the two flaws of the BSE algorithm of Barros' and Zhang's. Experiments on real world FECG illustrate the validity and better performance of the proposed algorithm.
A new approach for defining a fuzzy derivative is introduced and a comparison with a previous app... more A new approach for defining a fuzzy derivative is introduced and a comparison with a previous approach illustrates the advantageous of the new method. A first order fuzzy differential equation and a fuzzy Cauchy problem are defined and sufficient conditions for existence and uniqueness of solutions to fuzzy initial-value problems are given. Solutions are calculated for simple examples
Using the embedding approach a linear fuzzy system is defined and investigated. Sufficient condit... more Using the embedding approach a linear fuzzy system is defined and investigated. Sufficient conditions for the existence of a unique fuzzy solution are derived and a numerical procedure for calculating it is proposed and illustrated with examples
... Harbin Institute of Technology, Harbin 150006, PR China Wang Shuli Department of Mathematics,... more ... Harbin Institute of Technology, Harbin 150006, PR China Wang Shuli Department of Mathematics, Taiyuan Institute of Technology, Taiyuan 030000, PR China Ma Ming Department of ... S [aiO-nol, tx(AnAio)]>S[aio, lx(AnAio)]- e. It follows that [ f dtx <S[ai 'tz(AnAi )l+ le<~S Oli no [ 1 ...
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