Publications (6)
Low-Cost Turntable Designed for RF Phased Array Antenna Active Element Pattern Measurement
Rebekah Edwards, Taylor Martini, Jonathan E. Swindell +5
Accurate antenna array calibrations and measurements of aspects such as active element pattern (AEP) are critical for enabling integrated sensing and communication (ISAC) technolog…
In-Situ Assessment of Array Antenna Currents for Real-Time Impedance Tuning
Charles Baylis, Adam Goad, Trevor Van Hoosier +2
Impedance tuning has shown promise to maximize output power, gain, or efficiency for transmitter amplifier devices in changing frequency or array environments. Using impedance tuni…
Implementation of a Directional Modulation Testbed for Reconfigurable Transmitters for Spatially Agile MIMO Systems
Jonathan E. Swindell, David W. Cox, Rebekah Edwards +5
This paper demonstrates the implementation and validation of a microwave testbed for directionally modulated transmission. Directional modulation enables multiple communication and…
Changepoint Detection for Real-Time Spectrum Sharing Radar
Samuel Haug, Austin Egbert, Robert J. Marks +2
Radar must adapt to changing environments, and we propose changepoint detection as a method to do so. In the world of increasingly congested radio frequencies, radars must adapt to…
Dilated POCS: Minimax Convex Optimization
Albert R. Yu, Robert J. Marks, Keith E. Schubert +4
Alternating projection onto convex sets (POCS) provides an iterative procedure to find a signal that satisfies two or more convex constraints when the sets intersect. For noninters…
Growing Into an Adaptive and Reconfigurable Paradigm for Spectrum Sharing
Charles Baylis, Douglas Sicker, Austin Egbert +4
A significant movement from rigid use of the wireless spectrum toward adaptive and reconfigurable spectrum use has been prompted by increasing spectral crowding. Some bands have mo…