Consequently, we extracted features in each sub-band using a method that exploited the difference in correlation patterns between channels for different classes of target directions.
Unexpectedly, there was a remarkable difference in correlation with respect to the order of test administration.
What are likely explanations for the observed difference in correlation direction?
The interaction term OCF × GALMA indicates the difference in correlation before and after the German Accounting Law Modernization Act, and OCF × GGAAP represents the difference in correlation between German GAAP and IFRS firms.
We note a difference in correlation coefficients between the 557.7 nm emission intensity and the solar activity indices in different phases of the solar cycle.
Therefore, it can be concluded that the significant difference in correlation features between the pure clutter and that with target is helpful for the target detection.
The observed difference in correlation functions isareflection of the difference in depths between the tremor events and the intra-slab earthquakes, which rules out the possibility that these peaks result from some local structure around the station.
In this case, the influences of the atmosphere, ionosphere, and receivers can nearly be canceled in the difference in correlation phases, the difference in delay can be obtained with an accuracy of several picoseconds from the correlation phases, and the relative positions of Rstar and Vstar can be determined with a very high sensitivity (tens of cm).
Linear relationships were found between canopy storage capacity and leaf area (LA) or leaf area index (LAI), although there was a striking difference in correlation between storage capacity and LA or LAI of Artemisia ordosica compared to Caragana korshinskii and Hedysarum scoparium.
In particular, the difference in correlation phase at each frequency has to be estimated without the 2π ambiguity, and this imposes strict conditions; e.g., the correlation phase error must be lower than 4.3° and the error of differences in total electron content in the ionosphere must be less than 0.23 TECU.
A higher accuracy can be achieved using same-beam differential VLBI when the effects of the atmosphere, ionosphere, and receivers are almost canceled from the difference in correlation phase, and when channel 0 can be added (Liu et al., 2007; Kikuchi et al., 2009).
