Passive Sensing for Distributed Radars

Passive radars have gained much attention recently. Unlike classic monostatic or bistatic radars, passive radars make use of illuminators of opportunity to detect and locate targets. However, such illuminators of opportunity (reference signals) are most likely non-cooperative, therefore unsynchronized with the receiver. When such reference signals are not measurable, the usual cross correlation method or the so-called matched filtering method will not apply. When there are multiple receivers that are distributed geographically, and when multiple incoming targets are considered, the scenario becomes even more complicated. In this proposal GIRD Systems proposes new signal processing algorithms for passive radar target detection, localization, and tracking. If successful, the new algorithm is able to detect and track multiple targets with distributed sensors.