Results 171 to 180 of about 10,324 (223)

A Bistatic Point Target Reference Spectrum for General Bistatic SAR Processing

IEEE Geoscience and Remote Sensing Letters, 2008
A bistatic point target reference spectrum (BPTRS) based on Loffeld's bistatic formula (LBF) is derived in this letter. For LBF, the same contributions of the transmitter and receiver to the total azimuth modulation are assumed. This assumption results in the failure of LBF in the extreme configuration (i.e., spaceborne/airborne configuration).
Robert Wang 0001, Otmar Loffeld, Qurat Ul-Ann, Holger Nies, Amaya Medrano Ortiz, Ashraf Samarah   +5 more
openaire   +2 more sources

Bistatic ISAR

2018
Bistatic inverse synthetic aperture radar (B-ISAR) has progressed in the last decades pushed by technological advancements and by the need to overcome some limitations imposed by the monostatic radar geometry, as well as the need to image stealthy targets.
Martorella, Marco, Cataldo, Davide, Gelli, Samuele, Tomei, S.   +3 more
openaire   +3 more sources

Study of Bistatic Angle's Impact on Imaging Performance in Bistatic RCS Measurement

2016 International Conference on Identification, Information and Knowledge in the Internet of Things (IIKI), 2016
This paper introduces the imaging formula in bistatic radar cross section (RCS) measurement at first. Then the bistatic angle’s impact on imaging performance and the features of two typical bistatic RCS measurement modes are explored based on the shape of the corresponding Fourier transform spectrum domain (k-space).
Ming Lyu, Chao Gao
openaire   +1 more source

Optimal Polarization in Bistatic Scattering

SIAM Journal on Applied Mathematics, 1989
The authors obtain basic properties of optimal polarization in bistatic scattering. The paper describes two alternative methods, which are simple extension of those of \textit{C. Graves} [Radar polarization power scattering matrix. Proc. IRE, 248-252 (1956)] and \textit{E. Kennaugh} [The effects of polarization on echo characteristics. Ohio State Univ.
Cho, S. K., Chu, C. M.
openaire   +1 more source

Bistatic foliage penetration modelling

2007 IEEE International Geoscience and Remote Sensing Symposium, 2007
This paper aims at presenting a model able to study the impact of the target presence under vegetation and to assess the detection feasibility. In a first part the model is described. We will then get at the analysis of results for several set of radar configurations to illustrate the potentiality of detection by means of shadows.
Ludovic Villard, Pierre Borderies
openaire   +1 more source

Bistatic model of ocean scattering

IEEE Transactions on Antennas and Propagation, 1998
An analytical closed-form model is derived for the average power echo received by a bistatic altimeter from an oceanic surface at a frequency high enough for the Kirchhoff scattering mechanism to be dominant over the Bragg resonance one. The asymmetric behavior of the sea waves is taken into account, modeling the surface height as a non-Gaussian ...
PICARDI, Giovanni, SEU, Roberto, SORGE S., MARTIN NEIRA M.   +3 more
openaire   +2 more sources

A Solution for Bistatic Motion Compensation

2006 IEEE International Symposium on Geoscience and Remote Sensing, 2006
Bistatic synthetic aperture radar (SAR) missions have become attractive in the last years, because of their higher degree of freedom in choosing transmitter and (passive) receiver motion trajectories. In order to take advantage of this increased imaging flexibility, adequate processing algorithms have to be developed, implemented and verified with ...
H. Nies, O. Loffeld, K. Natroshvili, A. Ortiz, J. Ender   +4 more
openaire   +2 more sources

Range Linearization for Bistatic SAR

IGARSS 2018 - 2018 IEEE International Geoscience and Remote Sensing Symposium, 2018
In 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, Dan Bao, Bin Wu, Guodong Qin, Jingjing Cai   +4 more
openaire   +2 more sources

A bistatic polarimeter calibration technique

IEEE Transactions on Geoscience and Remote Sensing, 1995
A procedure for calibrating a bistatic polarimeter system without using reference scattering targets is described. Transmitter and receiver subsystem distortion matrices are determined via transmission link measurements in conjunction with an inexpensive test source and a linearly polarized test antenna. >
D. J. McLaughlin, Z. Ren, Y. Wu
openaire   +2 more sources

Bistatic SAR Processing and Experiments

IEEE Transactions on Geoscience and Remote Sensing, 2006
Bistatic synthetic aperture radar (SAR) uses a separated transmitter and receiver flying on different platforms to achieve benefits like exploitation of additional information contained in the bistatic reflectivity of targets, reduced vulnerability for military applications, forward-looking SAR imaging, or increased radar cross section.
Ingo Walterscheid, Joachim H. G. Ender, Andreas R. Brenner, Otmar Loffeld   +3 more
openaire   +1 more source