RCS characterization on a portable pit with a foam column at VHF/UHF

摘要

The RATSCAT radar cross section (RCS) measurement facility at Holloman AFB, NM is working to satisfy DoD and customer desires for certified RCS data. This paper discusses the low frequency characterization of the RATSCAT VHF/UHF Measurement System (RVUMS). The characterization was conducted on a portable pit with a 30' foam column at the RAMS site. System noise, clutter, backgrounds and generic target measurements ae presented and discussed. Potential error sources are examined. The use of background subtraction and full polarimetric calibration are presented. Potential erros, which can occur from using certain cross-pol calibration techniques, are discussed. The phase relationship between each plarization components of the scattering matrix and cross-pol validation techniques are considered.