Independent verification and validation (IV and V) testing of the Tomahawk Land Attack Missile (TLAM) GPS receiver

Under the Block III Conventional Tomahawk Land Attack Missile (TLAM) upgrade program, a two-channel Global Positioning System (GPS) receiver was integrated with the existing cruise missile navigation system. The Naval Air Development Center was tasked to perform independent validation and verification of the GPS flight software (GFS) hosted in the GPS receiver processor unit. Modifications were made to the GPS Central Engineering Activity (CEA) facility to allow for the testing of the GFS under simulated TLAM operational conditions. The authors present the methodology for conducting the GFS IV and V, the test requirements, and test plans and results. The lessons learned and test results obtained from the TLAM GPS IV and V are extrapolated for future GPS missile design requirements