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Non Stationary Bistatic Synthetic Aperture Radar Processing: Assessment of Frequency Domain Processing from Simulated and Real Signals
2009
PIERS Online
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Error maps provided may be used for illustrating the motion compensation and the frequency domain processing in a didactic way. ...
We tested frequency domain processing and motion compensation for both simulated and real signal for identical asymmetric configurations. ...
independent monostatic acquisition campaigns) thus providing realistic motion compensation test data for our bistatic SAR processors. ...
doi:10.2529/piers081007120542
fatcat:5wpp5zgs4fcyjokyvctjh3725i
Reduction to monostatic focusing of bistatic or motion uncompensated SAR surveys
2006
IEE Proceedings - Radar Sonar and Navigation
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This paper, sequel to other recently published, addresses also the problem of motion compensation, in that the first survey could also be monostatic, and the location of the second monostatic survey is ...
The use of a Digital Elevation Model is shown to be essential for the correct determination of the transfer function in the general case. ...
In a following section we will also show how even motion compensation can be seen under this perspective, leading to an intrinsic identification of motion compensation and bistatic focusing. ...
doi:10.1049/ip-rsn:20045105
fatcat:bvnyte7wt5ertlftspoqwr4jhu
An Estimation and Compensation Method for Motion Trajectory Error in Bistatic SAR
2022
Remote Sensing
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In this paper, an estimation and compensation method for three-dimensional (3D) motion trajectory error of BiSAR is proposed. ...
However, the motion trajectory error compensation of BiSAR is a challenging task due to multiple error sources and complex effects. ...
In this paper, a bistatic SAR motion trajectory error estimation and compensation method is proposed. ...
doi:10.3390/rs14215522
fatcat:5zfwftyo4ne3bfm6asediehu44
A Spatial Variant Motion Compensation Algorithm for High-Monofrequency Motion Error in Mini-UAV-Based BiSAR Systems
2021
Remote Sensing
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In this paper, a spatial variant motion compensation algorithm for high-monofrequency motion errors is proposed. ...
Third, the bistatic spatial variance can be adaptively compensated for based on the error of the nonlinear gradient through contour projection. ...
noise ratio was used as the focal quality indicator to search for the optimal solution. ...
doi:10.3390/rs13173544
fatcat:n4pghswaezed3mapfupx63wpaq
Passive ISAR Part I: Framework and Considerations
2018
IET radar, sonar & navigation
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In part I of a two-part passive imaging series, a comprehensive framework for imaging of air targets with passive radar (PR) systems is developed. ...
The various stages of translational motion compensation are shown to have significant impact on image quality, while target tracking data aids estimation of the apparent target rotation. ...
The prominent point processing algorithm is a commonly used approach for motion compensation [40, 41] . ...
doi:10.1049/iet-rsn.2018.5233
fatcat:ktusyc5g6ngm7pabkxpq4wx4ju
Bistatic SAR image formation
2006
IEE Proceedings - Radar Sonar and Navigation
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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 electronic countermeasures ...
The work presented here focuses on a fully airborne, synchronised bistatic SAR demonstration using QinetiQ's enhanced surveillance radar and the Thales/QinetiQ airborne data acquisition system, which took ...
For this bistatic variant, the motion compensation to scene centre has been extended to include the motion of both the transmitter and receiver. ...
doi:10.1049/ip-rsn:20045091
fatcat:zgqinjxutzayhgh3vppttqwqie
Bistatic-ISAR Linear Geometry Distortion Alleviation of Space Targets
2019
Electronics
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A linear geometry distortion alleviation algorithm for space targets in bistatic-ISAR systems is presented by exploiting prior information. ...
Third, we compensate the linear spatial-variant terms to restore the linear geometry distortions. Consequently, the restored bistatic-ISAR image with real shape is obtained. ...
Acknowledgments: We appreciate the editors and peer reviewers for their valuable comments and suggestions.
Conflicts of Interest: The authors declare no conflicts of interest. ...
doi:10.3390/electronics8050560
fatcat:w4xq4o5ev5drfbm6n74xjmdrea
Near-Space Microwave Radar Remote Sensing: Potentials and Challenge Analysis
2010
Remote Sensing
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Moreover, as motion compensation is a common technical challenge for the described radars, an active transponder-based motion compensation is also described. ...
Firstly, near-space passive bistatic radar using opportunistic illuminators offers a solution to persistent regional remote sensing, which is particularly interest for protecting homeland security or monitoring ...
Evaluating the phase of s m (t) leads to a motion compensation solution [86] . ...
doi:10.3390/rs2030717
fatcat:ofad6adaardvhhvt3urmfedqsy
Bistatic ISAR Sparse Imaging Method for High-Speed Moving Target Based on Dechirping Processing
2019
International Journal of Antennas and Propagation
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However, bistatic ISAR suffers from a serious defocusing problem, resulting from the high-speed motion. ...
In response to these problems, we propose a bistatic ISAR imaging method for high-speed moving target with geometric distortion correction and calibration based on dechirping processing. ...
[12] proposed a bistatic ISAR imaging method based on the motion decomposition model. ...
doi:10.1155/2019/9710968
fatcat:64m3jfrrs5d3fn75qte6mxwkia
Motion compensation in bistatic frequency-modulated continuous wave (FMCW) synthetic aperture radar (SAR)
2018
IET radar, sonar & navigation
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A solution for polarisation-resolved bistatic frequency-modulated continuous-wave (FMCW) SAR with independently moving platforms is derived and demonstrated through simulation. ...
Synthetic aperture radar (SAR) imaging with an independently moving transmitter and receiver introduces motion artefacts difficult to compensate for, especially between satellites in separate orbits that ...
Bistatic and multistatic radar must account for the motion of two platforms relative to the target and so other solutions have been devised. ...
doi:10.1049/iet-rsn.2018.5051
fatcat:qr5cyeevhzh65nztwsv6rgcdtq
Moving target parameter estimation and SFN ghost rejection in multistatic passive radar
2013
2013 IEEE Radar Conference (RadarCon13)
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In this paper, we consider the motion parameter estimation of ground moving targets in a multistatic passive airborne radar that utilizes broadcast signals as a source of opportunity. ...
A cost function is developed based on the estimated motion parameters which, when three or more illuminators are available, allows rejection of ghost targets in a single-frequency network (SFN) and proper ...
Therefore, the motion parameters estimated from this expression are merely a mathematical solution that best fits this equation. ...
doi:10.1109/radar.2013.6586086
fatcat:c3p6oiavzvhfhh4b6i2pesgggi
AN EXTENDED WAVENUMBER-DOMAIN ALGORITHM COMBINED WITH TWO-STEP MOTION COMPENSATION FOR BISTATIC FORWARD-LOOKING SAR
2016
Progress In Electromagnetics Research Letters
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For the focusing problem of BFSAR, wavenumber-domain algorithm is accepted as the ideal solution. ...
By modifying the reference function and mapping relationship in frequency interpolation, the extended wavenumber-domain algorithm of BFSAR integrates a two-step motion compensation. ...
In the case of high-resolution systems, a precise compensation of the range-dependent components of the motion error is essential. ...
doi:10.2528/pierl16071304
fatcat:msl27mq3zvdt5n6pmact63myee
Joint Detection and Localization of Vessels at Sea With a GNSS-Based Multistatic Radar
2019
IEEE Transactions on Geoscience and Remote Sensing
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This paper addresses the exploitation of GNSS as opportunistic sources for the joint detection and localization of vessels at sea in a passive multistatic radar system. ...
Moreover, the proposed singlestage approach can reach superior detection performance than a conventional two-stage process where peripheral decisions are taken at each bistatic link and subsequently the ...
The authors would like to thank Aster S.p.A. for providing the synchronization output. ...
doi:10.1109/tgrs.2019.2902938
fatcat:pyukfc54nvblzivq7lyfv4bukq
Motion parameter estimation of multiple ground moving targets in multi-static passive radar systems
2014
EURASIP Journal on Advances in Signal Processing
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Therefore, such motion parameters act as a common sparse support to enable the exploitation of group sparsity-based methods for robust motion parameter estimation. ...
While the different bistatic links have distinct Doppler signatures, they share the same set of motion parameters of the ground moving targets. ...
Amin was supported in part by a subcontract with Defense Engineering Corporation for research sponsored by the Air Force Research Laboratory under Contract FA8650-12-D-1376 and by a subcontract with Dynetics ...
doi:10.1186/1687-6180-2014-157
fatcat:kt43bwjl6nfvbcm4jixrk7ghba
Motion parameter estimation of multiple targets in multistatic passive radar through sparse signal recovery
2014
2014 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)
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The problem of estimating motion parameters of multiple closely located ground moving targets in a multistatic passive radar system is considered, with a focus on weak signal conditions. ...
The proposed method provides a means of combining signal energy from all available, spatially separated, illuminators of opportunity to achieve multistatic diversity and overall signal enhancement. ...
the SNR corresponding to each bistatic link, target range migration due to higher-order motion parameters (e.g., acceleration and jerk) emerges as a critical issue, and is difficult to compensate for. ...
doi:10.1109/icassp.2014.6853838
dblp:conf/icassp/SubediZAH14
fatcat:y7k7cuoh5naahpkozbxq4ofiza
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