Title :
Spotlight SAR processing using the extended chirp scaling algorithm
Author :
Mittermayer, Josef ; Moreira, Alberto
Author_Institution :
Inst. of Radio Frequency Technol., German Aerosp. Res. Establ., Oberpfaffenhofen, Germany
Abstract :
Presents a new processing algorithm for spotlight SAR data. The spotlight mode offers the potential of achieving very high geometric resolution. The extended chirp scaling (ECS) processing performs a subaperture approach combined with azimuth scaling and a new frequency scaling for range cell migration correction (RCMC). The subaperture processing and the effect of the frequency scaling are discussed. Simulation results demonstrate the precision processing in high resolution mode
Keywords :
geophysical signal processing; geophysical techniques; radar imaging; remote sensing by radar; synthetic aperture radar; SAR; azimuth scaling; extended chirp scaling algorithm; frequency scaling; geophysical measurement technique; land surface; processing algorithm; radar image processing; radar remote sensing; range cell migration correction; spotlight SAR; subaperture approach; synthetic aperture imaging; synthetic aperture radar; terrain mapping; Azimuth; Bandwidth; Chirp modulation; Data processing; Interpolation; Layout; Neodymium; Radio frequency; Signal processing; Signal resolution;
Conference_Titel :
Geoscience and Remote Sensing, 1997. IGARSS '97. Remote Sensing - A Scientific Vision for Sustainable Development., 1997 IEEE International
Print_ISBN :
0-7803-3836-7
DOI :
10.1109/IGARSS.1997.609199
