It is quite useful to grasp ground spatial aspects and its temporal change. Especially in highly urbanized area such capability has very important role for not only development planning but also disaster recovery planning. Table 1 shows examples and their usages of urban parameters. POLSAR has operational advantages over optical sensors because of acquisition capability regardless of weather, d...

This paper presents a new approach for the discrimination of ship responses using polarimetric SAR (PolSAR) data. The PolSAR multidimensional information is analyzed using a linear Time-Frequency (TF) decomposition approach, which permits to describe the polarimetric behavior of a ship and its background area for different azimuthal angles of observation and frequencies of illumination. This pa...

The present article is an introductory paper in this special issue on synthetic aperture radar (SAR). A short review is presented on the recent trend and development of SAR and related techniques with selected topics, including the fields of applications, specifications of airborne and spaceborne SARs, and information contents in and interpretations of amplitude data, interferometric SAR (InSAR...

The detection of small ships in polarimetric synthetic aperture radar (PolSAR) images is still a topic for further investigation. Recently, patch techniques, such as superpixel-level detection, have stimulated wide interest because they can use the information contained similarities among neighboring pixels. In this article, we propose novel neighborhood covariance matrix (NPCM) to detect PolSA...

PolSAR images provide more information than the conventional radar images and so greatly improves the ability to terrain discrimination. This work is focused on the problem of the classification of different terrain types of PolSAR images. The proposed method uses a combination of two different classifiers. This method is named as Meta classifier and compared with other competitive classifiers....

Polarimetric calibration is indispensable to quantitatively apply and analyze the polarimetric synthetic aperture radar (PolSAR) image. At present, methods relying on assumption of reflection symmetry have been widely used, which need extract reference targets that meet assumptions before then calculate cross-pol channel imbalance crosstalk errors. However, distortion in uncalibrated image will...

Abstract Polarimetric Synthetic Aperture Radar (PolSAR) calibration is an essential preprocessing step that must be performed to ensure the data quality adequate. This, in turn, helps minimize propagation of errors any further processing or information extraction. Crosstalk and channel imbalance are two major distortions found present uncalibrated polarimetric SAR data. The PolSAR mainly aims r...

New features are proposed for sea clutter characterization when PolSAR data employed. Cameron coherent target decomposition is applied to characterize each SAR pixel by means of the 8 basic elementary scatterers obtained this decomposition. Since examined does not match exactly a specific ideal scatterer, closest scatterer assigned along with its distance (closeness) from one. The (a) percentag...

Compact polarimetric (CP) data exploitation is currently of growing interest considering the new generation of such Synthetic Aperture Radar (SAR) systems. These systems offer target detection and classification capabilities comparable to those of polarimetric SARs (PolSAR) with less stringent requirements. A good example is the RADARSAT Constellation Mission (RCM). In this paper, some characte...