GIRD SYSTEMS INC — Department of Commerce SBIR Phase I: 8.4.4

Description

GIRD Systems leverages its extensive experience with interference cancellation systems, particularly for military SATCOM (UFO and MUOS), to propose two fundamental architectures for mitigating the wireless mobile uplink interference expected once spectrum sharing in the 1695-1710 MHz band begins. GIRD's ADEPT digital solution leverages the latest advances in digital technology to develop algorithms that are far more capable than RF-based solutions. Several approaches are identified under the two proposed architectures for extensive evaluation in a Phase I trade study. The architectures share the key characteristics of being interference agnostic (i.e., narrowband, wideband, modulation type, in-band, out-of-band, etc.). The solutions that are proposed can be characterized as “black box”, or “add-on”, solutions which reside between the satellite receive antenna and the satellite receiver. The filtering system will take as input a mixture of the desired and interfering signals and output the satellite signals with interference significantly mitigated (i.e., filtered). The output is then passed to the satellite receiver to process as if the interference were never present.