Results 131 to 140 of about 457 (166)
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Resolution analysis of bistatic SAR
SPIE Proceedings, 2011In this paper, we analyze the resolution of bistatic synthetic aperture radar (BISAR) imaging for stationary objects. In particular, we analyze the resolution of images reconstructed by the method of a filtered backprojection inversion, an inversion method which is derived from a scalar wave equation model. In this context we are able to account for
Garza, Guillermo, Zhijun Qiao
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IEE Proceedings - Radar, Sonar and Navigation, 2006
Synthetic aperture radar (SAR) allows all-weather, day-and-night surface surveillance and has the ability to detect, classify and geolocate objects at long stand-off ranges. Bistatic SAR, in which the transmitter and the receiver are on separate platforms, is seen as a potential means of countering the vulnerability of conventional monostatic SAR to ...
G. Yates +3 more
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Synthetic aperture radar (SAR) allows all-weather, day-and-night surface surveillance and has the ability to detect, classify and geolocate objects at long stand-off ranges. Bistatic SAR, in which the transmitter and the receiver are on separate platforms, is seen as a potential means of countering the vulnerability of conventional monostatic SAR to ...
G. Yates +3 more
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Oceanographic applications of spaceborne bistatic SAR
IGARSS 2003. 2003 IEEE International Geoscience and Remote Sensing Symposium. Proceedings (IEEE Cat. No.03CH37477), 2004This work presents an analysis of the attainable performance of a bistatic SAR for oceanographic applications, such as the determination of sea state parameters and the reconstruction of the sea wave spectrum. The analysis has been developed with regard to the spaceborne bistatic SAR of the BISSAT mission.
MOCCIA, ANTONIO +2 more
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Bistatic SAR: Forecasting Spatial Resolution
IEEE Transactions on Aerospace and Electronic Systems, 2019This paper derives closed-form expressions for bistatic synthetic aperture radar (SAR) spatial resolution of a generalized system from the $k$ -space or the wavenumber domain. These spatial resolution equations have not previously appeared in the literature.
William Dower, Mark Yeary
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Space-surface bistatic SAR-GMTI
Proceedings of 2011 IEEE CIE International Conference on Radar, 2011A space-surface bistatic SAR-GMTI algorithm is proposed here and the clutter characters are also discussed. Then a reference signal is adopted for range compression, which can make the range cell migration and Doppler centroid decreased largely. Furthermore, the clutter Doppler and phase are analysed as well as the phase difference characteristics, a ...
null Liao Yi +3 more
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Low frequency bistatic SAR measurements
2012 IEEE International Geoscience and Remote Sensing Symposium, 2012Airborne bistatic SAR data have been collected at VHF- and UHF-band to investigate clutter suppression in forested and urban areas. The synchronization between the SAR systems is accomplished using the 1-PPS signal provided by the GPS system. The same signal is also used as input to a disciplined 10 MHz master oscillator integrated in both radar ...
Anders Gustavsson +9 more
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Bistatic SAR Motion Compensation
2017In this chapter, we focus on motion compensation in bistatic SAR. Motion compensation is an important and challenging issue for obtaining focused imagery from monostatic and bistatic SAR data. Due to fluctuations in the linear motion of the airborne SAR platform, the trace always deviates from an ideal straight line, which alters the regular phase ...
Robert Wang, Yunkai Deng
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Range Linearization for Bistatic SAR
IGARSS 2018 - 2018 IEEE International Geoscience and Remote Sensing Symposium, 2018In bistatic SAR, range is difficult to be linearized for the complicated geometry. In this paper, comparing to monostatic SAR, a modified range direction is derived based on vector analysis. The scatters along this direction will be imaged to the same azimuth cell which is important for the nonlinear chirp scaling (NLCS) algorithm.
Gaogao Liu +4 more
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2017
Bistatic SAR (BiSAR) has been developing for 40 years, and it is still a topic of much discussion in the field of radar. BiSAR is a SAR system whose transmitter and receiver are spatially separated. This separation improves the system’s capability, reliability and flexibility, making it a promising and useful supplement to a classical monostatic SAR ...
Robert Wang, Yunkai Deng
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Bistatic SAR (BiSAR) has been developing for 40 years, and it is still a topic of much discussion in the field of radar. BiSAR is a SAR system whose transmitter and receiver are spatially separated. This separation improves the system’s capability, reliability and flexibility, making it a promising and useful supplement to a classical monostatic SAR ...
Robert Wang, Yunkai Deng
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SPIE Proceedings, 2014
The problems of simulation of bistatic SAR raw data and focusing are studied. A discrete target simulator is described. The simulator introduces the scene topography and compute the integration time of general bistatic configurations providing a means to derived maps of the range and azimuth spatial resolutions.
Pietro Bia +5 more
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The problems of simulation of bistatic SAR raw data and focusing are studied. A discrete target simulator is described. The simulator introduces the scene topography and compute the integration time of general bistatic configurations providing a means to derived maps of the range and azimuth spatial resolutions.
Pietro Bia +5 more
openaire +1 more source