The device 1, wherein a transmission time and {HEAD ~ transmission location} of {TAIL ~ the navigation signals} are determined using the models 
of
The device 1 , wherein a transmission time and { HEAD ~ transmission location } of { TAIL ~ the navigation signals } are determined using the models
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH