ELECTRONIC COUNTERMEASURES (ECM) AND ELECTRONIC COUNTER-COUNTERMEASURES (ECCM) ANALYSIS FOR GPS APPLICATIONS

The ability of GPS to counter electronic attack (jamming) and unintentional interfering signals is critical to the success of future military operations, and many activities of civilian life. Innovative testing approaches and well-equipped, affordable simulation and test facilities are required to analyze the effects of jamming/interference on GPS and to evaluate anti-jam techniques, such as adaptive antennas. This capability is essential for developing ECCMs against jamming and devising effective ECMs against enemy GPS systems.The objectives of this research are twofold: (1) to upgrade the capabilities of the AFRL EW Anechoic Chamber (EWAC) infrastructure for conducting tests of GPS systems in realistic jamming environments, and (2) to perform the evaluation and analysis of GPS ECM/ECCM techniques. This proposed Phase I will be an assessment of EWAC capabilities, test plans and procedures, and a facility upgrade design including the simulation hardware/software, instrumentation, and chamber modifications needed to meet GPS ECM/ECCM testing requirements. The requirements of the GPS Joint Program Office (JPO) for the ed for guidance on this program.