Structure-aware sparse reconstruction and applications to passive multistatic radar

Passive radar systems operate by exploiting signals of opportunity that are designed for other applications, such as broadcasting, communications, and satellite navigation. Passive radars have recently attracted attention in military applications, mainly because of their covertness, low-cost implementation, and no requirement of signal emissions [1], [2]. Whereas the primary use of passive radars is in the defense sector, these same features make them attractive in commercial applications. Unlike conventional active radar systems, which typically operate in a monostatic mode, passive radar can operate in a multistatic mode (thus called passive multistatic radar, or PMR) by using multiple transmitters. Multiple networked receivers can also be exploited for an expanded PMR network size.