Geolocations with Distributed Signals Intelligence (SIGINT) Sensors

Under this proposed SBIR effort, NAVSYS will develop a design for a networked SIGINT sensor architecture use Software Radio signal processing, GPS geolocation, and data fusion techniques to detect and geolocate interference sources. To achieve thispropose to leverage the inherent signal processing capabilities available in the next generation of Software Radios being purchased by the US Army to allow them to act as SIGINT sensors in this Software-Radio Networked SIGINT (SRN-SIGINT) architecture.InPhase I we propose to develop the SRN-SIGINT architecture and produce a design for a Software Radio with embedded SIGINT capability to be built under the Phase II project. Our plan is to develop a design that is compatible with the Joint Tactical RadioSystem (JTRS). The operation of the SRN-SIGINT capability will be demonstrated using simulation data to show the capability to fuse TDOA, FDOA and AOA SIGINT information from multiple Software Radios. We are also proposing to demonstrate the SRN-SIGINTconcept with in-house software radios and a data fusion workstation developed on another contract for GPS jammer location. Under Phase II, we propose to partner with the JTRS prime contractors to enable the SRN-SIGINT capability to transition into thisoperational program.The SRN-SIGINT capability integrated into the multi-spectral JTRS will provide a powerful yet inexpensive mechanism for collecting SIGINT data and distributing it to a SRN-SIGINT workstation for analysis, using a networked architecture.Commercial applications exist for this capability, embedded into personal communication systems, for geolocation of both interference sources and also personal geolocation in support of mobile E-9-1-1 applications. NAVSYS' commercial partners haveapplications for this capability for emergency medical response, personal safety and convict tracking operations.