Advanced Signal Processing and Coordination Applied to Electronic Support Measures

This SBIR addresses the NavyÆs need for a broad band passive interference mitigation system for the 2-18GHz electronic warfare (EW) frequency band. Historically the types of systems utilized to mitigate interference in congested electromagnetic environments rely on fast tuning filter systems that require powered control circuitry, are generally large and bulky and can only deal with a certain number of interfering signals at one time. Our proposed solution uses passively multiplexed ferrite-based Autotune Filters (ATF) to provide a system that covers the entire EW band simultaneously requiring no control circuitry and that can handle an unlimited number of interfering signals. Its small size makes it an ideal candidate for aerial as well as shipborne platforms.