par Mahfoudia, Osama ;Horlin, François ;Neyt, Xavier
Référence (8-12 May, 2017: Seattle, WA, USA), Proc. of the IEEE Radar Conference, RadarConf
Publication Publié, 2017-05
Publication dans des actes
Résumé : The present work investigates the optimum reconstructionof the reference signal in passive coherent location(PCL) radars exploiting Digital Video Broadcasting-Terrestrial(DVB-T) signals. Reference signal reconstruction is widely usedto improve the signal-to-noise ratio (SNR) in the reference signalfor DVB-T based PCL radars. Reference signal reconstructionis limited since for low SNR values, the signal demodulationis not sufficiently accurate which leads to a mismatch betweenthe reconstructed signal and the transmitted one. In this work,we propose an optimum reconstruction strategy that includesan optimum estimation of the detected QAM symbols, specificfor radar applications. To verify the proposed detection strategy,we calculated analytic models for the optimum filter and thedetection statistics. The analytic models are validated throughMonte-Carlo simulations. The results showed that the proposedmethod outperforms the conventional reference signal reconstructionscheme in terms of detection probability performance.