With the proliferation of personal navigation systems (car and mobile navigation – Fig. 1), practically everyone deals with it. It will not replace terrestrial and radar navigation, although it can be assumed that it will gradually limit their role to the observation and identification of objects not monitored electronically. The range of high-speed mobile data links (EDGE, UMTS-HSDPA-3.5G, 4G) now covers practically all European inland waters. On inland vessels also sailing on open waters, AIS Class B automatic identification system transponders are gaining popularity due to decreasing costs. The information obtained from them about the movement vectors of monitored units can be an alternative to information from radar plots (EPA, ARPA).2. MOBILE TELEPHONY POSITIONING TECHNIQUES
Parameters
commonly
used
in
mobile
telephony
for autonomous determination of position lines are: signal reception angle (the direction from which the signal reaches the phone antenna), signal propagation time and signal strength (corresponding to distance measurement), and comparison with a signal multipath pattern (a pattern of signal reflections from fixed infrastructure or a signal strength pattern can be used to determine position lines on a comparative basis – so-called Multipath Pattern
Matching). (…)
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Source: Logistyka Magazine 6/2011