USMC Ground Radio LPI/LPD Interference Mitigation Active Communication Antenna

Today, the Marine Corp Systems Command (MARCORSYSCOM) utilizes multiple communication systems in environments that require covert communications and are exposed to severe interference. To provide significantly improved LPI/LPD (Low-probability of Interference/Low-probability of detection) we propose an add-on MIMO module that connects to the antenna port of the existing tactical radio, specifically the AN/PRC-117G. Control of the tactical radio is done via Ethernet to coordinate the tactical radio and add-on module for setup to insure proper configuration, such as carrier frequency and waveform selection.The add-on MIMO module is completely autonomous in operation of the modem and thus does not violate RED/BLACK isolation requirements imposed within the tactical radio. The MIMO (Multipole Input Multiple Output) technology can be added to these existing radios without any modifications to it. The MIMO module improves the existing tactical radio allowing it to still communicate with existing tactical radios but with advanced beamforming capabilities. When connecting to another tactical radio with add-on MIMO module, the radio can support significantly improved LPI/LPD capability by spreading the waveform up to a 2 GHz bandwidth.