navigation acronyms, abbreviations and definitions - International ...
navigation acronyms, abbreviations and definitions - International ...
navigation acronyms, abbreviations and definitions - International ...
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PRU Performance Review Unit (EUROCONTROL)<br />
P S<br />
south geographic pole<br />
PSAP public safety answering point (for eCall type applications)<br />
PSC Port State Control<br />
PSD power spectral density<br />
PSDR preliminary system design review<br />
Pseudo-range Pure geometrical range between satellite <strong>and</strong> observer, corrupted by<br />
clock offsets, atmospheric errors <strong>and</strong> other error sources.<br />
Pseudolite Pseudo-satellite<br />
Ground-based transmitter designed to mimic a satellite (GPS).<br />
PSF performance shaping factor (of human behaviour in HRA)<br />
PSM power save mode (eg chip)<br />
PSMA Public Sector Mapping Agreement (OS for Engl<strong>and</strong> <strong>and</strong> Wales)<br />
PSMSL Permanent Service for Mean Sea Level<br />
PSoc Photogrammetric Society (became RSPSoc on 1 Jan 01)<br />
PSR primary surveillance radar<br />
PSS packet switching stream<br />
PSSA Particularly Sensitive Sea Area<br />
PSSA preliminary system safety analysis<br />
PSTN Public Switched Telephone Network<br />
PSU power supply unit<br />
PTAN precision terrain-aided <strong>navigation</strong><br />
PTC Positive Train Control (US DOT initiative)<br />
PTF precise timing facility<br />
PTFM passive traffic flow measurement (eg Trafficmaster)<br />
PTP packet time protocol (eg PTP IEEE-1588v2 in 2008)<br />
PTP personal travel planning (schemes for pedestrians)<br />
PTS Polar Track Structure<br />
PTS Precision Timing System/Station (Galileo)<br />
PTT platform transmitter terminal (eg tracker for animal)<br />
ptt press-to-transmit<br />
PTTI precise time <strong>and</strong> time interval<br />
PUFFIN Pedestrian User-Friendly INtelligent crossing (UK DTLR)<br />
PUIN Russian military air nav backup system based on GLONASS<br />
PUNE position component of the user <strong>navigation</strong> error (3-dimensional)<br />
PV pilot vessel<br />
PV prime vertical<br />
PVA position, velocity <strong>and</strong> acceleration (mode of op of integrated system)<br />
PVT Position, Velocity <strong>and</strong> Time (Galileo Service)<br />
PVTA position, velocity, time <strong>and</strong> attitude<br />
PWC personal water craft (jetski)<br />
110<br />
March 2012
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