Semi-active covert radars using illumination from exiting GSM base are very attractive for forming air surveillance continues monitoring system at low altitude. The major problem of designing such a radar is the interference of the direct path signal penetrated (PS) in the radar receiver through antenna sidelobes. Algorithm for target echo signal processing in such condition based on demodulation and spectral relection of PS is proposed in this paper. The carried out efficiency etimation shows the sufficient selection capability of the desired signal almost in the most of illuminating zone.

Proceedings of the International Workshop on Microwaves, Radar and Remote Sensing, September, 19-21, 2005 [Текст] : MRRS-2005 / International Civil Aviation Organization; Ministry of Education and Science of Ukraine; National Academy of Sciences of Ukraine; National Aviation University. — Kiev : NAU, 2005. — 348 p. : il.