ESA title


  • ACTIVITYDemonstration Project
  • STATUSOngoing
  • THEMATIC AREATransport & Logistics, Energy, Food & Agriculture, Maritime and Aquatic

Objectives of the service

DDK Positioning Ltd. (DDK) provides global satellite delivered GNSS Precise Point Positioning (PPP) services with hardware and software. The DDK services will increase the accuracy of your GNSS position from 10m to less than 5cm anywhere in the world from pole-to-pole. DDK deliver their services to the customer using the Iridium satellite communications network, a constellation of 66 military grade Low Earth Orbit (LEO) communication satellites. DDK provide accurate, robust, and reliable precise and accurate positioning services to customers working the Offshore Survey and Construction, Maritime and Agriculture sectors. DDK’s key technical differentiator within this marketplace is that we deliver our PPP services over the Iridium LEO satellite communication network, enabling DDK to;

  • DDK deliver a truly global PPP service from pole-to-pole – DDK’s service can be received at high latitudes, the signal does not get weaker if the user operates in regions outside 60°N/60°S;

  • Our PPP augmentation signal is less likely to suffer from masking as the LEO satellites are constantly moving, we can always see 2-4 Iridium satellites anywhere in the world;

  • The DDK PPP augmentation signal is consistent and more powerful than our competitors with a reduced latency due to our Iridium LEO communications satellites being 780km above the earth, not 35000km as with our competitors;

  • DDK uses the Iridium communications network DDK is able to leverage advantage of 2-way communications with the customers in the field;

  • •    Our data stream has 99% less data than our competitors.

Users and their needs

DDK’s target customers in the Offshore Survey and Construction, Maritime and Agriculture sectors and operate globally with bases in such diverse places as Brazil, Norway, Russia, Singapore, UK and USA.


Service/ system concept

DDK provide PPP GNSS augmentation to the end user hardware via Iridium satellite communications. The user equipment consists of;

  • DDK X1 GNSS Receiver – to compute/output an accurate (<5cm) corrected GNSS position to the end user; 

  • GNSS Antenna – to receive GNSS signals;

  • Iridium Edge Antenna – to receive the DDK PPP GNSS augmentation service;

  • LTE Antenna – for remote technical support, firmware upgrades and data analysis;

  • Peripherals and Cables.


Space Added Value


Current Status

The CDR meeting has taken place and is now officially closed.  Work continues towards the Factory Acceptance Test.  The Factory Acceptance Test has been scheduled for September 2022.  

Engagement continues with the hardware manufacturer and design of the User Interface continues to progress. 

Pilot User task plans continue to be finalised

DDK provided marketing support to our Pilot user exhibiting at Trade Shows in June and July.

Prime Contractor(s)

Status Date

Updated: 02 August 2022