Patent ID: 8912946
Filing Date: 2014-12-16
Classification: G01S

Abstract:
1. A submillimeter wavelength radar system comprising: a receiver configured to receive and downconvert signals from content in a field of view of the system, the downconverted signals corresponding to a given point in the field of view and having time varying amplitude and phase components which have a periodic component which is dependent on the content at the given point; and a processor arranged to determine information about the content from the periodic component, the radar system being arranged to obtain signals of the same points in the field of view from different illumination or receiving angles by having multiple illumination or receive positions, and the processor being arranged to use the determined information from the signals from the two or more angles to determine location or orientation of the content, the information determined from the periodic component comprising any one or more of effects of content flutter, speckle patterns characteristic of the content, or interference effects from thin layers in the content causing radio frequency dependent periodicity.