This paper describes the sliding spotlight algorithm and the processing strategy to be applied for TerraSAR-X. The steering spotlight geometry is analysed. Analysis of scene size and resolution demonstrates the particularities of this mode. The Doppler frequencies for individual targets and for a whole sliding spotlight scene are analyzed and the result shows the applicability of azimuth subape...

This article introduces spotlight tiling, a type of covering which is similar to tiling. The distinguishing aspects of spotlight tiling are that the “tiles” have elastic size, and that the order of placement is significant. Spotlight tilings are decompositions, or coverings, and can be considered dynamic as compared to typical static tiling methods. A thorough examination of spotlight tilings o...

Abstract. This article introduces spotlight tiling, a type of covering for a region which is similar to tiling. The distinguishing aspects of spotlight tiling are that the “tiles” have elastic size, and that the order of placement is significant. Spotlight tilings are decompositions, or coverings, and can be considered dynamic as compared to typical static tiling methods. A thorough examination...

Synthetic aperture radar (SAR) sliding spotlight work mode can achieve high resolutions and wide swath (HRWS) simultaneously by steering the radar antenna beam. This paper aims to obtain well focused images using sliding spotlight mode with the Chinese Gaofen-3 SAR sensor. We proposed an integrated imaging scheme with sliding spotlight echoes. In the imaging scheme, the two-step approach is app...

In this paper, we have made an attempt to take a look under the hood of Spotlight and understand some of the following questions amongst others: • How well-integrated is Spotlight with the file system? • How reliable is the interface between Spotlight and the file system? • Is live update a myth or a reality under heavy file system activity? Based on our experiments, it seems that Spotlight is ...

Spotlight SAR interferometry is an attractive option for high resolution mapping and monitoring. In this paper, the signal spectral characteristics and the interfeometric properties of spaceborne spotlight SAR are analyzed completely, and the effect of the azimuthvariant Doppler to spotlight SAR interferometry is studied. Moreover, a new coregistration algorithm, which contains coarse coregistr...

This paper concentrates on the Doppler spectrum characteristics of hybrid bistatic SAR experiments, i.e., TerraSAR-X/PAMIR where TerraSAR-X was steered as the illuminator in the sliding spotlight mode, and PAMIR, mounted on a Transall C-160, operated in the inverse sliding spotlight mode. The bistatic Double Sliding Spotlight (DSS) experiment has been successfully performed in March 2009. For t...

mayuri m. naik was born in 1988 in curchorem, goa (india). she completed her b.sc. from government college of arts, science and commerce, quepem-goa in 2008. she received her m.sc. degree in organic chemistry from goa university in 2010. presently she is proceeding with ph.d. under the supervision of prof. s. g. tilve and prof. v. p. kamat in department of chemistry, goa university, goa. her re...

Endmember-Guided Unmixing Network (EGU-Net): A General Deep Learning Framework for Self-Supervised Hyperspectral Unmixing, by D. Hong, L. Gao, J. Yao, N. Yokoya, Chanussot, U. Heiden, and B. Zhang, IEEE Transactions on Neural Networks Systems, Vol. 33, No. 11, Nov. 2022, pp. 6518–6531.

a wireless sensor network (wsn) is a wireless decentralized structure network consists of many nodes. nodes can be fixed or mobile. wsn applications typically observe some physical phenomenon through sampling of the environment so determine the location of events is an important issue in wsn. wireless localization used to determine the position of nodes. the precise localization in wsns is a co...