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Design of an Active MM-Wave Concealed Object Imaging System



Nicholas Paulter, Erich N. Grossman, Gerard N. Stenbakken, Bryan C. Waltrip, Shalva Nolen, Carl D. Reintsema


The research and design of an active millimeter-wave concealed object imaging system is described. Several illumination and detection methods were analyzed via computer simulation to assess the effects of system parameters on the signal-to-noise ratio of the detected signal. The results of many of these simulations were experimentally verified using either a 10 MHz or a 100 GHz measurement system. Based on this assessment, two designs using pulsed illumination with gated detection were selected for development. Pulsed illumination is provided using a pulsed broadband noise source. For detecting the reflected noise pulse, two methods were examined, one using microbolometers and the other using electrooptics. Based on imaging system considerations, such as cost of manufacture, ruggedness, etc., and technical parameters, microbolometer arrays were selected for further development. The electronics interface, including image display capability, was developed. We examined the absorption of some common clothing materials at 100 GHz and compared this to results previously reported.
Proceedings Title
Proc. SPIE Conf. on Passive Millimeter-Wave Imaging Technology V
Conference Dates
April 16-20, 2001
Conference Location
Orlando, FL, USA


active imaging system, concealed object imaging, imaging system design, microbolometers, milimeter-wave


Paulter, N. , Grossman, E. , Stenbakken, G. , Waltrip, B. , Nolen, S. and Reintsema, C. (2001), Design of an Active MM-Wave Concealed Object Imaging System, Proc. SPIE Conf. on Passive Millimeter-Wave Imaging Technology V, Orlando, FL, USA, [online], (Accessed April 12, 2024)
Created July 31, 2001, Updated October 12, 2021