GPS Interference DOA Initiative for User Purposes (GIDI-UP)

Using the ADAP CRPA as its basis, GIRD Systems proposes to develop a GPS Interference Direction of Arrival (DoA) Initiative for User Purposes (GIDI-UP) solution based on a novel, high-performance DOA estimator that provides direction estimates of GPS interference/jammers/spoofers to be used by ADAP to place nulls in the identified directions and to enhance situational awareness of the RF environment (e.g., locate spoofers).  GIRD leverages their TRL-6 wideband, polarization-invariant, super-resolution DOA estimator, which has been proven in field tests, and extends its performance through the use of the virtual array (VA) concept to enable higher resolution DOA estimates and performance that is robust to multipath, noise, signal bandwidth, and model mismatch errors. The technical solution will yield the required accuracy of less than one 1 deg (Threshold) / 0.5 deg (Objective) in azimuth and elevation while estimating DOAs for more than the required 6 interfernce siganls.