Rad Hard, Low Power, Scaleable FFT Processor

The GPS has become an essential component of the Warfighting apparatus of the United States. Although the system has had outstanding success in enhancing Warfighting capability, it is recognized that there are weaknesses in the system that must be removedif needed performance is to be realized in the 21st century. Currently, the greatest need in navigation is jamming resistant technology. Narrowband sources of interference can easily be countered using nonlinear adaptive frequency domainfiltering/processing techniques, namely frequency domain excision (FFT-based excision). Current FFTs dissipate excessive amounts of power and are therefore not applicable in relatively small (handheld) GPS receivers and satellite nodes. Our proposedeffort will develop a very low power FFT, while also developing a capability for implementing FFT functions for other space processing needs.