系统工程与电子技术(英文版)
繫統工程與電子技術(英文版)
계통공정여전자기술(영문판)
JOURNAL OF SYSTEMS ENGINEERING AND ELECTRONICS
2015年
4期
868-876
,共9页
numerical differentiation%noisy data%local optimum%data segmentation
A new numerical differentiation method with local opti-mum by data segmentation is proposed. The segmentation of data is based on the second derivatives computed by a Fourier devel-opment method. A filtering process is used to achieve acceptable segmentation. Numerical results are presented by using the data segmentation method, compared with the regularization method. For further investigation, the proposed algorithm is applied to the resistance capacitance (RC) networks identification problem, and improvements of the result are obtained by using this algorithm.