Table 2. Reference system REFERENCE SYSTEM The characteristics of the Reference System (2) are summarized in Table 2 and Fig. 6. The SPS is generally recognized as a difficult engineering development project requiring substantial advancements in many technical areas. Its feasibility hinges on projected reductions in the cost of space transportation, improvements in energy conversion technology, advancements in large space structures, space construction, and space operations technology, and in the achievement of required characteristics of the micro wave beam. Technological advancements in related fields are providing potential alternatives for some SPS subsystems. These include solid-state amplifiers, solid-state antenna Fig. 6. Schematic of reference system
RkJQdWJsaXNoZXIy MTU5NjU0Mg==