Aircraft Masking Effect on Anti-jamming Techniques

摘要

The LRBA has established a test procedure to evaluate thernimpact of aircraft masking effect on anti-jamming per-formances,rnas far as GPS is concerned. A method with arnMirage III placed in non-anechoic chamber had been de-velopedrnto avoid GPS perturbations in the open air.rnThe masking coefficient was measured as a function of thernangle between the plane and the source of the jammingrnsignal. L1 and L2 frequencies were studied.rnThe results of the conducted tests are presented for a sin-glernantenna (patch), and secondly for an antenna networkrn(CRPA).rnA exploitation is then made to evaluate the impact of thisrnmasking effect on operational scenarios.