Microwave Measurement For Wavefront Reconstruction Via Infrared Detection

Steven K. Rogers; Ronald M. Sega; Scott A. Woods

doi:10.1117/12.946139

20 March 1985 Microwave Measurement For Wavefront Reconstruction Via Infrared Detection

Steven K. Rogers, Ronald M. Sega, Scott A. Woods

Proceedings Volume 0520, Thermosense VII: Thermal Infrared Sensing for Diagnostics and Control; (1985) https://doi.org/10.1117/12.946139
Event: 1984 Cambridge Symposium, 1984, Cambridge, United States

Abstract

A unique technique for microwave wavefront measurement using infrared (IR) detection for the purpose of wavefront reconstruction is presented. This paper extends previously reported IR detection results of microwave interactions, to the measurement of tangential electric or magnetic field magnitudes using resistive paper or a ferrite-loaded material respectively. Partial phase information is obtained by using subapertures, coated for IR detection, each oriented in the direction of maximum power transfer, which provides noisy phase difference measurements. This limited spatial relative phase information is used along with the measured magnitude to reconstruct the incident wavefront. Two previously reported algorithms are described for this reconstruction. The first algorithm uses relaxation techniques while the second more general algorithm is a Kalman filter type iterative algorithm.

Citation Download Citation

Steven K. Rogers, Ronald M. Sega, and Scott A. Woods "Microwave Measurement For Wavefront Reconstruction Via Infrared Detection", Proc. SPIE 0520, Thermosense VII: Thermal Infrared Sensing for Diagnostics and Control, (20 March 1985); https://doi.org/10.1117/12.946139

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