PDS Development and
  Integration

• PDS Facilities are developed by subcontractors and acceptance tested as such;
• Assembly, integration and testing of the various facilities is performed in factory on a Reference Platform, representing the configurations of the PDHS, PDCC, LRAC and a reference PAC;

The full deployment and assembly of facilities is then performed on the ESA sites for a final on site acceptance test.

PDS testing will make extensive use of Instrument test data provided by ESA through the use of instrument simulators or reconditioning of ERS in-flight data.

Two versions of the PDS will be developed and delivered:

1. For the PDS V1, emphasis is put on the validation of complete functions:
   • Kiruna/PDHS-K:
     • PDHS validation on the reference Platform
     • No deployment
   • ESRIN/PDCC:
     • No deployment
   • ESRIN/PDHS-E:
     • PDHS validation on the reference Platform
     • Dry run for the hardware and software installation
   • Kiruna/LRAC:
     • LRAC validation on the Reference Platform
     • No deployment
   • Fucino/PDAS:
     • No deployment

2. PDS V2 delivery will contain:
   • all facilities in final versions except MCF and GSP (version 1 only) deployed on sites
   • Required Centre/station internal communication infrastructure
   • Communication interfaces to ESA's CFI communication infrastructure

To anticipate the overall ENVISAT-1 integration, a deployment of User Services to ESRIN as well as a second instance of the PDCC is foreseen during the development of V1/V2.

Keywords: ESA European Space Agency - Agence spatiale europeenne, observation de la terre, earth observation, satellite remote sensing, teledetection, geophysique, altimetrie, radar, chimique atmospherique, geophysics, altimetry, radar, atmospheric chemistry