EW Countermeasures Against Passive MMW Sensors

An emerging class of passive millimeter-wave (pmmW) sensors currently provides an unmitigated threat to the US Navy. While considerable effort has been expended reducing RADAR signatures of the next generation of Naval vessels, these ship designs often present significant signatures to pmmW sensors. To date, little has been done to understand or reduce these signatures. However, as a new class of pmmW sensors emerge that provide all-weather, day/night imagery, driven by applications in commercial security and developments in high-speed electronics, protecting against these threats will become significantly more important. Under this Phase II effort, we will develop countermeasures to these emerging threats using a combination of signature simulation and experimental validation. Using the output of models developed under this program, we will investigate a range of potential countermeasures including both passive and active approaches. In conjunction with the relevant program offices, we will then analyze the efficacy of these countermeasures for various mission requirements and scenarios.