Analysis and Elimination of Common-Mode Errors in Workspace Measurement and Positioning System

Fig. 3. Spectra of residual time series. (a) Magnitude spectrum of residual time series 1; (b) magnitude spectrum of residual time series 2; (c) magnitude spectrum of scanning period

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Fig. 4. Results (a) before and (b) after principal component analysis filtering. (1)-(3) corresponding to receivers 1-3

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Table 1. Correlation parameters of time series
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Table 1. Correlation parameters of time series
Comparison t'₁ and t'₂ t'₁ and T' t'₂ and T'
Correlationcoefficient 0.3424 0.0578 0.0355

Table 2. Correlation parameters of partial time series

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Table 2. Correlation parameters of partial time series

Item		Receiver 1		Receiver 2		Receiver 3
Item		t'₁	t'₂	t'₁	t'₂	t'₁	t'₂
Receiver 1	t'₁	1	0.5785	-0.2969	0.1481	-0.3435	0.2557
Receiver 1	t'₂	0.5785	1	0.1481	0.2760	0.2557	0.1741
Receiver 2	t'₁	-0.2969	0.1481	1	0.1143	0.7194	0.2950
Receiver 2	t'₂	0.1481	0.2760	0.1143	1	0.2211	0.5238
Receiver 3	t'₁	-0.3435	0.2557	0.7194	0.2211	1	0.5188
Receiver 3	t'₂	0.2557	0.1741	0.2950	0.5238	0.5188	1

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Siyang Guo, Jiarui Lin, Linghui Yang, Jigui Zhu. Analysis and Elimination of Common-Mode Errors in Workspace Measurement and Positioning System[J]. Laser & Optoelectronics Progress, 2019, 56(4): 041201

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