Inspec keywords: image resolution; synthetic aperture radar; filtering theory; convolution; radar resolution; radar imaging; spaceborne radar

Other keywords: azimuth resolution; two-step focusing technique; azimuth convolution; azimuth data filtering; focused SAR images; SAR data processing; generalised processing code; strip-map processing; spotlight SAR data processing; chirp signal; spacebome systems; hybrid strip-map/spotlight SAR; hybrid acquisition mode; microwave image generation

Subjects: Radar theory; Filtering methods in signal processing; Optical, image and video signal processing