Title :
A compact mmW imaging radiometer for concealed weapon detection
Author :
Nötel, Denis ; Huck, Johann ; Neubert, Stefan ; Wirtz, Stefan ; Tessmann, Axel
Author_Institution :
Res. Establ. for Appl. Sci. (FGAN), Res. Inst. for High Freq. Phys. & Radar Tech. (FHR), Wachtberg
Abstract :
Concealed weapon detection based on passive millimeter wave imaging requires a high spacial resolution to achieve useful output. In order to meet this requirement while decreasing the overall imaging time, the approach presented here employs a mechanically scanned focal plane array at 94 GHz. In this paper, details about a four-channel scanning radiometer setup are given using a novel compact W-band receiver. Finally, the measured data alongside with the required channel equalization and superresolution-based image enhancement are discussed.
Keywords :
focal planes; image enhancement; image resolution; millimetre wave imaging; millimetre wave receivers; radiometers; weapons; W-band receiver; channel equalization; compact imaging radiometer; concealed weapon detection; four-channel scanning radiometer; frequency 94 GHz; mechanically scanned focal plane array; passive millimeter wave imaging; superresolution-based image enhancement; Frequency; High-resolution imaging; Image resolution; Lenses; Millimeter wave radar; Optical imaging; Physics; Radiometry; Spatial resolution; Weapons;
Conference_Titel :
Infrared and Millimeter Waves, 2007 and the 2007 15th International Conference on Terahertz Electronics. IRMMW-THz. Joint 32nd International Conference on
Conference_Location :
Cardiff
Print_ISBN :
978-1-4244-1438-3
DOI :
10.1109/ICIMW.2007.4516492
