Analysis of Decorrelation Caused by Mast Oscillation in Spaceborne Dual-Antenna InSAR

Author

Tang, Xiaoqing ; Wu, YiRong ; Wang, Yanping ; Peng, Hailiang

Author_Institution

Nat. Key Lab. of Microwave Imaging Technol.

fYear

2006

fDate

16-19 Oct. 2006

Firstpage

1

Lastpage

5

Abstract

The antenna mast oscillation in the spaceborne dual-antenna interferometric SAR system will directly degrade the height accuracy. The decorrelation caused by mast oscillation is attributed to the relative shift and the beam centre shift of the outboard antenna. The transfer function of InSAR system and the coherence coefficient considering the effects of mast oscillation are derived. Theoretical and numerical analyses show the influence of amplitude and frequency of mast oscillation oh the coherence of image pair. Finally, the validity of the analysis is demonstrated by the simulation results

Keywords

decorrelation; radar antennas; spaceborne radar; synthetic aperture radar; transfer functions; decorrelation analysis; mast oscillation; spaceborne dual-antenna InSAR; synthetic aperture radar; transfer function; Antenna measurements; Antenna theory; Azimuth; Decorrelation; Geometry; Image analysis; Microwave antennas; Spaceborne radar; Synthetic aperture radar interferometry; Transfer functions; decorrelation; mast oscillation; spaceborne dual-antenna InSAR;

fLanguage

English

Publisher

ieee

Conference_Titel

Radar, 2006. CIE '06. International Conference on

Conference_Location

Shanghai

Print_ISBN

0-7803-9582-4

Electronic_ISBN

0-7803-9583-2

Type

conf

DOI

10.1109/ICR.2006.343289

Filename

4148395