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浏览/检索结果: 共2条，第1-2条 帮助 已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择发表日期升序发表日期降序作者升序作者降序提交时间升序提交时间降序题名升序题名降序 Degradation analysis based on an extended inverse Gaussian process model with skew-normal random effects and measurement errors 期刊论文 RELIABILITY ENGINEERING & SYSTEM SAFETY, 2019, 卷号: 189, 页码: 261-270 作者:  Hao Songhua;  Jun, Yang;  Berenguer, Christophe 收藏  |  浏览/下载：4/0  |  提交时间：2019/12/30 Extended inverse Gaussian process model  Skew-normal random effects  Measurement errors  The MLE method  Extended MC integration algorithm   Chirp estimation of PZT for integrating-bucket method (EI CONFERENCE) 会议论文 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, April 26, 2010 - April 29, 2010, Dalian, China Zhang J.; Shi Z.; Miao E.; Gu Y.; Liu W. 收藏  |  浏览/下载：16/0  |  提交时间：2013/03/25 The nonlinear response of the PZT for the integrating bucket method is studied by our proposed method: discrete chirp Fourier transform (DCFT) and maximum likelihood estimation (MLE) techniques for the integrating bucket method. Based on the signal processing theory  the intensity obtained from CCD is processed by the DCFT and thus nonlinear response and chirp coefficient of the PZT can be coarsely estimated. This is followed by the MLE method  in which an iterative optimization process is complemented for accurately estimating the nonlinear response and chirp coefficient of the PZT. One key advantage of the proposed method is that not only the nonlinear response and chirp coefficient of the PZT can be acquired  but also initial phase acquired. Our method is tested by simulating conditions under which a certain magnitude of nonlinearity is assumed. Nonlinear response attained by the DCFT is compared to that attained by the MLE  and a difference between the actual nonlinear response of the PZT and our accurate estimation by the proposed method is revealed. Several factors that will have influence on the nonlinear response of the PZT are discussed. 2010 Copyright SPIE - The International Society for Optical Engineering.