Millimetre wave radar imaging

Author

Williams, M.L. ; Bartlett, L.H. ; Britton, A. ; Deadman, H.A.

Author_Institution

Defence Res. Agency, Malvern, UK

fYear

1994

fDate

34654

Firstpage

42583

Lastpage

42584

Abstract

The article is concerned with the formation of high resolution radar images with high geometric accuracy and the registration of these images against cartographic maps or other forms of reference. The majority of the radar data has been gathered using a millimetre wave radar sensor designed to allow the application of Doppler beam sharpening (DBS) techniques. DBS processing is very similar in character to synthetic radar aperture (SAR) processing, both exploit the differential Doppler shift imparted to returning radar signals and use it to give increased angular resolution. The difference between SAR and DBS being that DBS processing is used to enhance cross-range resolution at angles around the boresight whereas SAR processing is carried out on data from a sideways looking radar

Keywords

Doppler shift; image resolution; radar imaging; remote sensing by radar; DBS processing; Doppler beam sharpening; SAR processing; angular resolution; boresight; cartographic maps; cross-range resolution; differential Doppler shift; high geometric accuracy; high resolution radar images; image registration; millimetre wave radar imaging; radar data; radar signals; synthetic radar aperture;

fLanguage

English

Publisher

iet

Conference_Titel

Radar and Microwave Imaging, IEE Colloquium on

Conference_Location

London

Type

conf

Filename

383806