Results 171 to 180 of about 1,808,791 (206)

On Spaceborne Synthetic Aperture Radar (SAR) Systems in China

2014 XXXIth URSI General Assembly and Scientific Symposium (URSI GASS), 2014
The Synthetic aperture radar (SAR) technology has been developed in China since 1970s, and the first airborne SAR system was established in 1979 and obtained multiple SAR images. Although the spaceborne SAR technology started later in China, advanced concepts and key techniques of spaceborne SAR systems were proposed and investigated in recent twenty ...
Robert Wang, Yunkai Deng, Weidong Yu
exaly   +2 more sources

Overview of Results of Spaceborne Imaging Radar-C, X-Band Synthetic Aperture Radar (SIR-C/X-SAR)

IEEE Transactions on Geoscience and Remote Sensing, 1995
The Spaceborne Imaging Radar-C, X-Band Synthetic Aperture Radar (SIR-C/X-SAR) was launched on the Space Shuttle Endeavour for two ten day missions in the spring and fall of 1994. Radar data from these missions are being used to better understand the dynamic global environment.
Benjamin Holt, J van Zyl, Diane L. Evans
exaly   +5 more sources

A Nonlinear Polynomial Filter for Sidelobe Suppression of Spaceborne and Airborne Synthetic Aperture Radar (SAR) Images With High Resolution

IEEE Journal on Miniaturization for Air and Space Systems, 2022
Mengdao Xing, Yachao Li, Tao Xiong
exaly   +2 more sources

Calibration and characterisation of spaceborne Synthetic Aperture Radars (SAR)

Advances in Space Research, 1997
Abstract Applications of Synthetic Aperture Radar (SAR) data are many and varied. The emergence of SAR as a commercially viable commodity is also focusing needs to provide services to fulfil applications at affordable prices. This then drives the need to include only features in the system that are necessary and to arrive at designs which are cost ...
D.J.Q. Carter, D.L. Hurd, R.A. Cordey
openaire   +1 more source

Precision focusing algorithms for spaceborne Synthetic Aperture Radar (SAR)

International Journal of Remote Sensing, 1996
Abstract The two-dimensional transfer function is derived from the Synthetic Aperture Radar (SAR) imaging model. Using this expression, the approximations made in the classical range-Doppler and recent chirp-scaling algorithms are examined. An alternative algorithm to the chirp-scaling algorithm is presented.
Heng, A.W.-C., Lim, H., Liew, S.C., Tan, B.T.G.   +3 more
openaire   +1 more source

C-SAR spaceborne synthetic aperture radar raw data simulator

Proceedings of the IEEE 1997 National Aerospace and Electronics Conference. NAECON 1997, 2002
The C-SAR raw data simulator is a fundamental component of the C-band spaceborne Synthetic Aperture Radar (SAR) ground demonstration system being developed by China Aerospace Corporation (CASC). The simulator provides the demonstration system with the radar raw signal in real time, and further forms a complete data stream together with the onboard ...
null PengZhi Cao, null RongQing Xu, null RongTan Liu   +2 more
openaire   +1 more source

A novel circularly polarized synthetic aperture radar (CP-SAR) system onboard a spaceborne platform

International Journal of Remote Sensing, 2010
For decades, linearly polarized synthetic aperture radar (LP-SAR) systems have been used in spaceborne platforms. In the transmitting and receiving processes, Faraday rotation in the ionosphere often affects the LP signals, leading to degradation in the backscatter signature in SAR images as well as loss of available power. Although the use of circular
P. Rizki Akbar, J. Tetuko S. S., H. Kuze
openaire   +1 more source

Overview of the Spaceborne Imaging Radar-C/X-band Synthetic Aperture Radar (SIR-C/X-SAR) missions

Remote Sensing of Environment, 1997
Abstract The Spaceborne Imaging Radar-C/X-band Synthetic Aperture Radar (SIR-C/X-SAR), the most advanced imaging radar system to have flown in Earth orbit, was carried in the cargo bay of the Space Shuttle Endeavour in April and October 1994. SIR-C/X-SAR simultaneously recorded data at three wavelengths (L-, C-, and X-bands; 23.5 cm, 5.8 cm, and 3.1 ...
Diane L. Evans, Jeffrey J. Plaut, Ellen R. Stofan   +2 more
openaire   +1 more source

Geographic information system (GIS)-aided per-segment scene analysis of multitemporal spaceborne synthetic aperture radar (SAR) series with application to urban areas

International Journal of Remote Sensing, 2010
It is well known that multi-temporal series of synthetic aperture radar (SAR) data are able to provide interesting clues about temporal evolution of some land covers. In this work, a per-segment approach based on the use of ancillary geographic information system data is proposed.
TRIANNI, GIOVANNA, DELL'ACQUA, FABIO, GAMBA, PAOLO ETTORE   +2 more
openaire   +2 more sources

Airborne and spaceborne Synthetic Aperture Radar (SAR) integration with Landsat TM and gamma ray spectrometry for geological mapping in a tropical rainforest environment, the Carajas Mineral Province, Brazil

International Journal of Remote Sensing, 1997
Abstract This research focuses on the integration of Synthetic Aperture Radar (SAR) (C-HH airborne, JERS-1, ERS-1) with Landsat TM and airborne gamma ray (total count, uranium, and thorium) data for geological mapping in Carajas Province, Brazil. The area is related to an Archean shear belt, with metasediments, metavolcanics, gneisses, and granulites ...
W. R. Paradella, P. A. Bignelli, P. Veneziani, R. W. Pietsch, T. Toutin   +4 more
openaire   +1 more source