High-power Interference Canceller with Optional Self-generated Reference

In Phase II of this SBIR program, Photonic Systems, Inc. (PSI) proposes to further develop its High-power Interference Canceller (HPIC), which functionally is inserted into the receive chain of a SIGINT or other receiver between the antenna and the front end. The PSI approach is based on cancelling, instead of timing, filtering or attenuation, to reduce the deleterious effects of interfering signal(s). A prime advantage of HPIC is that it operates continuously on interfering signals whose spectra overlap or even coincide with the signal-of-interest. To enable the HPIC to be applied to existing as well as future tactical mounted and dismounted systems with severe size, weight, power and cost (SWaP-C) constraints, PSI plans in this phase to significantly reduce the SWaP-C through the extensive integration of the circuit. To address the needs of both existing (legacy) and new radios, PSI plans to develop HPIC in forms suitable for both. For legacy radios, HPIC will be made available in a package that connects directly to the radio and its antenna, without requiring any change to either the radio or its antenna. For new receiver designs, the HPIC chip would be incorporated directly into the receiver front end.