Computational Millimeter-Wave Imaging

SummaryWe are developing novel active incoherent microwave and millimeter-wave imaging techniques that use orders of magnitude less bandwidth and integration time than current incoherent millimeter-wave imaging systems.

Publications:

D. Chen, S. Vakalis, and J. A. Nanzer, “Imageless Shape Detection Using a Millimeter-Wave Dynamic Antenna Array and Noise Illumination,” IEEE Transactions on Microwave Theory and Techniques, accepted

D. Chen, S. Vakalis and J. A. Nanzer, “Dynamic Antenna Array Design for Scene Classification Through Fourier-Domain Filtering,” IEEE Transactions on Antennas and Propagation, vol. 69, no. 9, 2021

S. Vakalis, D. Chen, and J. A. Nanzer, “Millimeter-Wave Imaging at 652 Frames per Second,” IEEE Journal of Microwaves, vol. 1, no. 3, 2021

J. A. Nanzer, S. Vakalis, L. Gong, Y. He, and J. Papapolymerou, “Incoherent Imaging at Microwave and Millimeter-Wave Frequencies Using Noise Transmitters,” IEEE Aerospace and Electronic Systems Magazine, vol. 35, no. 10, 2020

S. Vakalis, D. Chen, and J. A. Nanzer, “Towards Space-Time Incoherent Transmitter Design for Millimeter-Wave Imaging,” IEEE Antennas and Wireless Propagation Letters, vol. 19, no. 9, 2020

S. Vakalis, L. Gong, Y. He, J. Papapolymerou, and J. A. Nanzer, “Experimental Demonstration and Calibration of a 16-Element Active Incoherent Millimeter-Wave Imaging Array,” IEEE Transactions on Microwave Theory and Techniques, vol. 68, no. 9, 2020

S. Vakalis and J. A. Nanzer, “Analysis of Array Sparsity in Active Incoherent Microwave Imaging,” IEEE Geoscience and Remote Sensing Letters, vol. 17, no. 1, 2020

S. Vakalis and J. A. Nanzer, “A Digital Interferometric Array with Active Noise Illumination for Millimeter-Wave Imaging at 13.7 fps,” IEEE International Microwave Symposium, 2020

S. Vakalis and J. A. Nanzer, “A Space-Time Modulated Distributed Antenna Array for Multiple Target Angle Estimation,IEEE International Symposium on Antennas and Propagation, 2020, 2nd Place Winner Student Paper Competition

S. Vakalis and J. A. Nanzer, “Distributed Array Transmitter Spatial Coherence in Active Incoherent Millimeter-Wave Imaging,” IEEE International Symposium on Antennas and Propagation, 2020

S. Vakalis, L. Gong, J. Papapolymerou, and J. A. Nanzer, “40-GHz Active Interferometric Imaging with Noise Transmitters,” Invited paper, European Radar Conference, 2019

S. Vakalis and J. A. Nanzer, “Transmit Pattern Analysis for Active Incoherent Microwave Imaging,” IEEE International Symposium on Antennas and Propagation, 2019

S. Vakalis, L. Gong, and J. A. Nanzer, “Imaging With WiFi,” IEEE Access, vol. 7, 2019

S. Vakalis and J. A. Nanzer, “Analysis of Element Failures in Active Incoherent Microwave Imaging Arrays Using Noise Signals,” IEEE Microwave and Wireless Components Letters, vol. 29, no. 2, 2019

S. M. Ellison, S. Vakalis, and J. A. Nanzer, “Optimizing for Spatial Frequency Coverage vs. Point-Spread Function Sidelobe Level in Active Incoherent Microwave Imaging Arrays,” USNC-URSI Radio Science Meeting URSI-B, 2019

S. Vakalis and J. A. Nanzer, “Transmit Pattern Analysis for Active Incoherent Microwave Imaging,” IEEE International Symposium on Antennas and Propagation, 2019

S. Vakalis and J. A. Nanzer, “Microwave Imaging Using Noise Signals,” IEEE Transactions on Microwave Theory and Techniques, vol. 66, no. 12, 2018

S. Vakalis and J. A. Nanzer, “An Information-Theoretic Approach to Waveform Design for Active Incoherent Microwave Imaging,” Invited paper, IEEE Conference on Antenna Measurements and Applications, 2018

S. Vakalis and J. A. Nanzer, “An Active Microwave Imaging Technique Using Spatial Frequency Sampling,” IEEE International Microwave Symposium (IMS), 2018