Complex environment generation for integrated CNI terminals

Large-scale test facilities produced by TRW Military Electronics and Avionics Division for support of various integrated communication, navigation, and identification (CNI) avionics terminals are described. The two most recent versions of the CNI support facility represent a substantial capital investment in modular avionics technology, as well as an important advancement in real-time test, evaluation, and demonstration capability. The facilities enable the generation of a complex stimulus environment to fully stress and evaluate terminals under test, and offer the advantages of a controllable, repeatable test scenario as a practical adjunct to flight testing. An overview is given of the test facilities, including their purpose, features, and usage. The functions, subsystems, and interfaces are then described. The operating modes of the system are briefly discussed