Design and implementation of a noise radar tomographic system

Mark A. Asmuth; Hee Jung Shin; Ram M. Narayanan; Muralidhar Rangaswamy

doi:10.1117/12.2176753

21 May 2015 Design and implementation of a noise radar tomographic system

Mark A. Asmuth, Hee Jung Shin, Ram M. Narayanan, Muralidhar Rangaswamy

Proceedings Volume 9461, Radar Sensor Technology XIX; and Active and Passive Signatures VI; 94610W (2015) https://doi.org/10.1117/12.2176753
Event: SPIE Defense + Security, 2015, Baltimore, MD, United States

Abstract

A hardware system has been developed to perform ultrawideband (UWB) noise radar tomography over the 3–5 GHz frequency range. The system utilizes RF hardware to transmit multiple independent and identically distributed UWB random noise waveforms. A 3–5 GHz band-limited signal is generated using an arbitrary waveform generator and the waveform is then amplified and transmitted through a horn antenna. A linear scanner with a single antenna is used in place of an antenna array to collect backscatter. The backscatter is collected from the transmission of each waveform and reconstructed to form an image. The images that result from each scan are averaged to produce a single tomographic image of the target. After background subtraction, the scans are averaged to improve the image quality. The experimental results are compared to the theoretical predictions. The system is able to successfully image metallic and dielectric cylinders of different cross sections.

Citation Download Citation

Mark A. Asmuth, Hee Jung Shin, Ram M. Narayanan, and Muralidhar Rangaswamy "Design and implementation of a noise radar tomographic system", Proc. SPIE 9461, Radar Sensor Technology XIX; and Active and Passive Signatures VI, 94610W (21 May 2015); https://doi.org/10.1117/12.2176753

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