For Full-Text PDF, please login, if you are a member of IEICE,|
or go to Pay Per View on menu list, if you are a nonmember of IEICE.
Suppression of Ground Radar Interference in JERS-1 SAR Data
Hiroshi KIMURA Takashi NAKAMURA Konstantinos P. PAPATHANASSIOU
IEICE TRANSACTIONS on Communications
Publication Date: 2004/12/01
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Synthetic Aperture Radar (SAR), ground radar, interference, notch filter, JERS-1,
Full Text: PDF(1MB)>>
JERS-1 L-band SAR data can be, especially over urban areas affected by ground radar interferences. For most of the applications of the data the interferences should be suppressed. Notch filtering during image correlation process is one of the straightforward ways to do this. However, lower the threshold is, more signals from earth surface is eliminated. In this paper, a probability density function (PDF's) model of the ground radar interference signal is worked out from experimental data, and used for the suppression of interferences and the preservation of backscattered signals. The validity of the model is confirmed against real SAR data, and a general filter threshold--applicable to all JERS-1 SAR data--without any conditions is proposed.