SAR with ultra-high range resolution using synthetic bandwidth

Author

Berens, Patrick

Author_Institution

Forschungsgesellschaft fur Angewandte Naturwissenschaften, Wachtberg, Germany

Volume

3

fYear

1999

fDate

1999

Firstpage

1752

Abstract

Subsequent received pulses with different centre frequencies can be combined after A/D conversion to one single long response with very high bandwidth. This method can be described as synthetic bandwidth. R. T. Lord et al. (1997) present the processing steps which have to be implemented in the case of transmitted FM pulses with identical chirprate. However, relative motion between the radar and the target has not been considered in these papers. This paper presents two new methods to compress signals with synthetic bandwidth compensating for motion up to different grades

Keywords

geophysical techniques; radar signal processing; remote sensing by radar; synthetic aperture radar; terrain mapping; A/D conversion; FM pulse; SAR; centre frequencies; geophysical measurement technique; land surface; processing steps; radar remote sensing; signal compression; single long response; subsequent received pulse; synthetic aperture radar; synthetic bandwidth; terrain mapping; ultra-high range resolution; very high bandwidth; Azimuth; Bandwidth; Chirp; Convolution; Frequency conversion; Frequency synthesizers; Radar; Sampling methods; Signal resolution; Signal synthesis;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium, 1999. IGARSS '99 Proceedings. IEEE 1999 International

Conference_Location

Hamburg

Print_ISBN

0-7803-5207-6

Type

conf

DOI

10.1109/IGARSS.1999.772084

Filename

772084