multistatic passive radar

Satellite-based passive radar

Satellite-based passive radar

L’attività del gruppo si concentra sullo sviluppo di sistemi e tecniche innovative per radar passivi basati su segnali di opportunità satelliti. Sfruttando l’ampia disponibilità di segnali provenienti dallo spazio, trasmessi da satelliti per comunicazione, navigazione e osservazione della Terra, questi sistemi stanno emergendo come una soluzione promettente per applicazioni sia nel campo dell’osservazione della Terra sia in quello della sicurezza e protezione.

GNSS-based multistatic passive radar imaging of ship targets

This work brings forward a framework for passive radar imaging of ship targets by exploiting the reflections of navigation satellite signals. The specific objective is taking advantage of the inherent multistatic nature of the system for the ship passive imagery. To this aim, a bistatic image formation stage is first defined. Then, the bistatic images obtained over multiple baselines are mapped in a domain independent on the particular satellite viewing angle.

Multistatic GNSS-based passive radar for maritime surveillance with long integration times. Experimental results

The focus of this paper is on multi-transmitter GNSS passive radar for maritime surveillance. Particularly, working in the range-Doppler domain, the possibility to integrate over long time intervals (required to counteract restricted power budget provided by navigation satellites) the returns from a moving target illuminated by multiple GNSS transmitters is experimentally demonstrated.

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