navigation acronyms, abbreviations and definitions - International ...

PNT Exec Ctee US National Space-Based Positioning, Navigation & Timing Exec Ctee
Chaired jointly by Dep Secs of Defense and Transportation.
Members: Depts of State, Commerce, Homeland Security, JCS &
NASA. Under 2004 Presidential Directive. Ex-IGEB.
PO dust devils (met)
POB persons on board
POB pilot on board
POC proof-of-concept
POD precise orbit determination
POEMS Pre-Operational European Mode S Station (EUROCONTROL)
POI point of interest (LBS)
POINT Position Orientation INTegration (software for UAV nav fm GRC)
POP period of operation
POP point of presence (local area node joining WLAN to trunk network)
POP Post Office Protocol (Internet)
POR Pacific Ocean Region (Inmarsat satellite)
POS/LV Position & Orientation System for Land Vehicles
POS/NAV positioning and navigaion
PoSAT Portugese Satellite (-1 carries GPS experiments)
POSSUM Policy Scenarios for Sustainable Mobility (EU)
Postcode Units by which delivery of post is managed (Royal Mail)
In UK comprises Area (eg SW), District (7), Sector (2) and Unit (AT) -
hence SW7 2AT.
POTS plain old telephone system!
PP positioning performance
PPC predicted/potential point of collision
PPD personal privacy/protection device (typically a GNSS jammer)
PPD pilot preference downlink
PPD Presidential Policy Directive (US)
PPE personal protective/protection equipment
PPI plan position indicator
PPL( ) Private Pilot’s Licence
(A) = aircraft, (B) = balloons, (H) = helicopters, A(M) = microlights.
ppm parts per million
PPM pulse position modulation
PPP precise point positioning
PPP public-private partnership
PPPS pulse pairs per second (DME. TACAN etc)
PPS Precise Positioning Service
The full accuracy positioning service provided to the military by GPS.
Includes access to unencrypted P-Code transmissions.
PPS pulses per second
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March 2012