Title :
A 94GHz real aperture 3D imaging radar
Author :
Macfarlane, David G. ; Robertson, Duncan A.
Author_Institution :
Sch. of Phys. & Astron., Univ. of St. Andrews
Abstract :
The AVTIS radar developed in St Andrews is a ground-based, portable, 3D imaging radar designed for high resolution terrain mapping. The 94 GHz radar uses FMCW modulation and employs a mechanically scanned monostatic antenna configuration, achieving a maximum range of ~7 km with sub-metre range resolution. We discuss the significant factors which affect the imaging performance such as source phase noise and non-linearity, antenna pattern quality, and surface extraction algorithms. Field testing results gathered at a local quarry are presented to illustrate the effects of antenna pattern quality on the digital reconstruction of terrain
Keywords :
CW radar; FM radar; image reconstruction; millimetre wave imaging; radar antennas; radar imaging; radar resolution; remote sensing by radar; scanning antennas; terrain mapping; 94 GHz; AVTIS radar; FMCW modulation; antenna pattern quality; aperture 3D imaging radar; digital reconstruction; scanned monostatic antenna configuration; submetre range resolution; terrain mapping; Antenna measurements; Image reconstruction; Phase noise; Radar antennas; Radar imaging; Radar remote sensing; Reflector antennas; Surface reconstruction; Surface topography; Terrain mapping; Antenna radiation patterns; FMCW radar; millimetre wave radar; phase noise; radar imaging; remote sensing; surfaces;
Conference_Titel :
Radar Conference, 2006. EuRAD 2006. 3rd European
Conference_Location :
Manchester
Print_ISBN :
2-9600551-7-9
DOI :
10.1109/EURAD.2006.280297
