Processing Signals In High Density Electromagnetic Environments
Navy SBIR FY2008.2

Sol No.: Navy SBIR FY2008.2
Topic No.: N08-165
Topic Title: Processing Signals In High Density Electromagnetic Environments
Proposal No.: N082-165-0435
Firm: Azure Summit Technology, Inc.
12587 Fair Lakes Circle #342
Fairfax, Virginia 22033
Contact: Mark Sullivan
Phone: (703) 272-1319
Web Site:
Abstract: Legacy approaches to Radar Threat Warning such as SLQ-32 are being completely replaced through modernization programs such as SEWIP Block 2, which will likely replace IFM technology with a channelized receiver approach. In doing this, the benefits of COTS hardware modules can be leveraged, along with the associated Modular Open Systems Architecture (MOSA) concepts. However, the COTS RF receiver modules at the front end and subsequent A/D converters become the vulnerable point in the system, and are susceptible to being saturated by other onboard RF transmissions. In this effort, Azure will develop and validate advanced cancellation algorithms that will extend the usable dynamic range of the receiver front ends, preserving weak threat signals in the presence of powerful onboard interference.
Benefits: The proposed technology has the potential to allow co-site emitters to operate in closer proximity, both in frequency and space, and exhibit lower losses than conventional filtering approaches. Military applications include improving the interoperability of communications, radar, surveillance, and jamming systems operating in close proximity, in particular for shipboard co-site compatibility situation such as that expected for SEWIP Block II.