IPADS-I Improved Position and Azimuth Determining System-International

Inertial Surveying System

EMCORE’s Improved Position and Azimuth Determining System (IPADS-I) is an inertial surveying system developed to meet today’s demanding international military survey needs. Survey operations functionality, navigational accuracy, transportability, survivability and affordability requirements drove the system design.

EMCORE’s IPADS-I (International) provides significant enhancements for today’s Army and Marine Corps survey teams. IPADS offers a proven, reliable, lightweight, off-the-shelf solution developed around four main components.

> Compact Position/Navigation Unit (CPNU)
> Control and Display Unit (CDU)
> Battery and Charger Unit (BCU)
> Porro Prism Assembly (PPA)

All components are housed in a robust frame that allows for easy component access and stability, while facilitating a ready, two-person transfer between vehicles and aircraft.


  • High-precision common survey enables efficient mass fires
  • Impervious to jamming (inertial mode)
  • Embedded Selective Availability Anti-Spoofing Module (SAASM) GPS option
  • Navigation aids (compass rose and digital maps)
  • In-vehicle and offset survey
  • Combat-proven
  • Embedded Built-In Test (BIT)
  • High reliability MTBF, low mean time to repair (MTTR)
  • No periodic calibration required


    Artillery Survey to Mark:

  • Survey Control Point (SCP) position; used to initialize weapon systems
  • Orienting Line (OL) position and azimuth; used to initialize and align artillery assets