Critical Technologies for Performing RCS Target Measurements using a String Support System

摘要

Target support pylons and foam columns have been in use since the late 1970's to provide target support for RCS measurements. Pylons currently limit our low frequency measurement capability due to the moderately high scattering from the pylon edges. Additionally both foam column and pylon support structures interact with the target scattering which can limit our ability to completely subtract the target support scattering from the target signature data. Target suspension using a string support system has the potential to eliminate these limitations. MRC has recently completed a string support technology demonstration program to identify the critical components for implementing an indoor string support system for RCS measurements. Critical components identified and demonstrated under this program included a survey of string materials for RCS measurements, development of low coefficient of friction swivel bearings, structural target to string interfaces, and three different techniques for providing target rotation. This presentation will highlight the results from the demonstration program showing viability of string support systems to provide an enhanced RCS measurement capability for indoor RCS measurement ranges.