Analysis of range ambiguity suppression in SAR by up and down chirp modulation for point and distributed targets

Author

Mittermayer, Josef ; Martínez, José Márquez

Author_Institution

Deutsches Zentrum fur Luft- und Raumfahrt, Oberpfaffenhofen, Germany

Volume

6

fYear

2003

fDate

21-25 July 2003

Firstpage

4077

Abstract

This Paper provides a demonstrative derivation of the effect of up and down chirp modulation on point and extended target signals. Analysis has been performed with respect to signal amplitude, signal extension, modulation rate and phase behavior. The suppression of "point target" range ambiguities is investigated for the a possible TerraSAR-X parameter setting. Extended targets have been simulated and filtered. A Range-Ambiguity Simulator is under development which is based on airborne X-band data from the Experimental SAR (E-SAR) of DLR. The simulator concept is presented.

Keywords

airborne radar; chirp modulation; geophysical signal processing; geophysical techniques; radar signal processing; remote sensing by radar; synthetic aperture radar; DLR; SAR; TerraSAR-X parameter setting; airborne X-band data; chirp modulation; distributed targets; phase properties; point target; range ambiguity suppression; signal amplitude; signal extension; target signals; Amplitude modulation; Analytical models; Chirp modulation; Filtering; Filters; Frequency domain analysis; Performance analysis; Phase modulation; Pulse modulation; Signal analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium, 2003. IGARSS '03. Proceedings. 2003 IEEE International

Print_ISBN

0-7803-7929-2

Type

conf

DOI

10.1109/IGARSS.2003.1295367

Filename

1295367