An error estimation method in finite element structural analysis

1981 ◽  
Vol 13 (1) ◽  
pp. 50
Keyword(s):  
Finite Element ◽  
Structural Analysis ◽  
Error Estimation ◽  
Estimation Method ◽  
Error Estimation Method

scholarly journals DQ-Frame Admittance Estimation of Three-Phase Converters with a Wide Range of Operating Points

2021 ◽  
Author(s):  
Hong Gong ◽  
xiongfei wang ◽  
Dongsheng Yang
Keyword(s):  
Error Estimation ◽  
Closed Loop ◽  
Estimation Method ◽  
Experimental Results ◽  
Multidimensional Interpolation ◽  
Three Phase ◽  
Wide Range ◽  
Linearized Model ◽  
Operating Points ◽  
Error Estimation Method

The <i>dq</i>-frame admittance of closed-loop controlled three-phase converters is a linearized model that is dependent on the operating points of the system. Yet, it is impractical to measure the converter admittance at all operating points. This paper, thus, proposes an approach to estimating the <i>dq</i>-frame admittance of three-phase converters at a wide range of operating points. The method applies multidimensional interpolation to a given set of admittance data, which is measured from the pre-defined operating points. The accuracy of interpolation is then evaluated by using the posterior error estimation method. The number of pre-defined operating points is next adjusted to find a good compromise between the accuracy and efficiency of the approach. Simulations and experimental results verify the effectiveness of the approach.<div><br></div>

An Array Error Estimation Method for Constellation SAR Systems

2010 ◽  
Vol 7 (4) ◽  
pp. 731-735 ◽  
Author(s):  
Aifei Liu ◽  
Guisheng Liao ◽  
Lun Ma ◽  
Qing Xu
Keyword(s):  
Error Estimation ◽  
Estimation Method ◽  
Error Estimation Method

scholarly journals A NOVEL ARRAY ERROR ESTIMATION METHOD FOR AZIMUTH MULTICHANNEL SAR

2014 ◽  
Vol 145 ◽  
pp. 133-139
Author(s):  
Xile Ma ◽  
Zhen Dong ◽  
Zaoyu Sun ◽  
Feng He ◽  
Diannong Liang
Keyword(s):  
Error Estimation ◽  
Estimation Method ◽  
Error Estimation Method

An efficient error estimation method for antenna distortions in space based radar

2019 ◽  
Vol 89 ◽  
pp. 8-16
Author(s):  
Lihuan Huo ◽  
Guisheng Liao ◽  
Zhiwei Yang ◽  
Penghui Huang ◽  
Jun Zhang
Keyword(s):  
Error Estimation ◽  
Estimation Method ◽  
Error Estimation Method
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