Bistatic Radar Cross Section Study of Complex Objects Utilizing the Bistatic Coherent Measurement System (BICOMS)

摘要

The NRTF and MRC have recently completed the first bistatic RSC test utilizing the Bistatic Coherent Measurements System (BICOMS). BICOMS is the first true far-field, phase coherent, bistatic RCS measurement system in the world and is installed at the NRTF Mainsite facility. The test objects inclued a 10 foot long ogive and a 1/3 scale C-29 aircraft model. Full polarimetric, 2-18 GHz monostatic and bistatic RCS measurements were performed on both targets at 17 degree and 90 degree bistatic angles. BICOMS data demonstrates excellent agreement to method-of-moments RCS predictions (ogive) and indoor RCS chamber measurements (monostatic, ogive). This paper describes the BICOMS system and the test process, highlights some process improvements discovered during testing, assesses the quality of the collected data set, and analyzes the accuracy of the bistatic equivalence theorem.