Real-Time Synthesis Approach for Simultaneous Radar and Spatially Secure Communications from a Common Phased Array

Simultaneous single-aperture radar and communication is an inherently real-time application. Coexistence and spectrum sharing in unpredictable, dynamic 5G environments require the agility of a real-time solution. Physically securing information in communications against recovery by unintended receivers is also of interest. This work describes the computational basis of a real-time system for simultaneous radar and spatially secure communication. Uniform linear array excitation synthesis uses zero-forcing directional modulation and Barker code sequencing. System security and radar performance are simulated and discussed.