The first D1 sources are assumed to be far-field signals, while the remaining D2 = D - D1 sources locate within the near-field extent of the array.
Data from all wells drilled in a one mile collar of the Dudley Field extent were collected regardless of the production status of the well.
For the spherical microphone array with an order N, the near-field extent is suggested [35, 36] Figure 1 Spherical coordinate system for localization.
When the ranges of the sources are within the near-field extent of the array, the RMSEs of the azimuths, elevations, and ranges are shown in Figure 11.
The highest spherical harmonics order is N = 4, so the near-field extent of the array is (R, 0.64λ), where λ is the wavelength.
In contrast at the field extent, non-crop heterogeneity did not have any significant effects on the richness and abundance of any functional group.
This is also useful to estimate the length of field borders. 2 Field sizes Estimation of total acreage of fields - measurements taken at corners of the cultivation area ranging from 3-22 corners, depending on field extent.
For the Auckland Volcanic Field, Spӧrli and Eastwood (1997) argued that vents at the outer limit of the current field extent varied substantially with age, potentially defining a constant magma source area.
The Kriging technique is used to interpolate the concentrations of cobalt and copper in the top layer of soils and in the preparation of field extent soil property maps (Moyeed and Papritz 2002; Bishop and Mc Bratney 2001).
Our results showed that both clay and calcium carbonate prediction models are accurate at the regional extent, whereas prediction model performances at the within-field extent depend on the model robustness.
