These indicated that the sampling density had important effect on the detection of SOC variability in the county-wide region, the equal interval grid sampling was not efficient enough, and the respective CV of each land use or soil type should be fully considered when determining the sampling number in the future.
Moreover, based on the same SOC change and the present time CVs at D255, the ratio of samples needed for paddy field, dry farmland, and forest land should be 1 0.81 3.33, while the actual corresponding ratio in an equal interval grid sampling was 1 0.74 0.46.
The conventional sampling method is UTSM which is based on equal time interval sampling.
This paper presents a new way of sampling UASM, based on equal amplitude interval sampling, which is expected to describe the polarization decay curve accurately with less sampling data.
The phase information was then used to resample the OCT interference signals from equal time intervals to linear phase, or equal frequency interval samples.
The phase information was then used to resample the OCT interference traces from constant time intervals to linear phase, or equal frequency interval samples.
Based on the sample fraction, women were selected at equal interval using systematic random sampling.
The normalization factor is defined as the number of samples taken (by equal interval) from the aforementioned curves to generate an input for the subsequent classification.
From the resulting curve samples are taken by equal interval.
Seven degraded spectral configurations were built from this reference database with a number of spectral bands decreasing from 328 to 10, a spectral resolution decreasing from 3 nm to 200 nm, and a spectral sampling interval equaling the spectral resolution (i.e., uniform interval sampling).
