Single/multiple input-single output transfer function with noise models for constituents of iron ores of Northern Goa, India |
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| Authors: | P S Raiker and B K Sahu |
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| Institution: | (1) Department of Earth Sciences, I.I.T., 400076 Powai, Bombay, India;(2) Present address: Lecturer in Geology, College of Engineering, 403405 Farmagudi, Goa, India |
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| Abstract: | Parametric time domain time series models for different chemical constituents such as SiO
2,Fe
2
O
3,TiO
2,MnO, and P
2
O
5
of iron ores belonging to banded hematite quartzites in Bicholim Mine (Goa) have been utilized for forecasting Fe
2
O
3
assay values through single/multiple input—single output (Fe
2
O
3
) transfer function with noise methodology. Statistically significant correlated chemical constituent inputs (say, SiO
2,TiO
2,MnO, P
2
O
5
) along lateral (horizontal strike direction) and vertical (perpendicular to bedding planes) sections in this mine are useful in modeling as well as forecasting assay values of blocks of ore to be exploited. Parameters of transfer function—noise models are estimated by utilizing time domain methodology, and the usefulness of these models for optimization of mining operations is discussed. |
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| Keywords: | time (spatial) series prewhitening feedback transfer function residual variance forecasting kriging |
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