Review of Root-Mean-Square Error Calculation Methods for Large Deployable Mesh Reflectors

In the design of a large deployable mesh reflector, high surface accuracy is one ultimate goals since it directly determines overall performance reflector. Therefore, evaluation needed in many cases and analysis reflectors. The usually specified as root-mean-square error, which measures deviation geometry from desired working surface. this paper, methods error calculation for reflectors are reviewed. Concept reflector gain, describes performance, its relationship with presented. Approaches to prediction or estimation preliminary shown. Three reflectors, namely, nodal best-fit direct effective region introduced. An adjusted suggested when concept involved. Finally, these reviewed applied two-facet geometry, center-feed an offset-feed demonstration comparison.