MIL-PRF-52955 Revision D, April 13, 2015
IMPROVED POSITION AND AZIMUTH DETERMINING SYSTEM (IPADS)
Includes all amendments and changes through Amendment 1, April 13, 2015
The Improved Position and Azimuth DeterminingSystem is intended for use in the conduct of field artillery surveys todetermine the horizontal coordinates and elevations of locations critical inthe fire control function, such as battery centers, launcher positions,orientating stations, declination stations, target acquisition devices, andsurvey control points. The system will determine the azimuth of the orientinglines for weapons and target acquisition systems. The system will operate in anygeographic area except above 84 ° north latitude and below 80 ° south latitude. IPADSmay utilize valid GPS data. IPADS will operate when GPS, and other systemsrelying on radio frequency transmissions, are not available.