Interferometric Isar Three-Dimensional Imaging Using One Antenna

Liu, Chenglan; Gao, Xiaofeng; Wen-li, Jiang; Li, Xiang

doi:10.2528/pierm11070803

Cited by 12 publications

(10 citation statements)

References 8 publications

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“…However traditional phase unwrapping algorithms that assume a continous phase surface are not directly applicable to InISAR images [12]. Another option is to use an unambiguous extra interferometric pair for the distance of interest, [11,27], in order to obtain the correct phase cycle n(r, d) in (14).…”

Section: Inisar Signal Processingmentioning

confidence: 99%

Interferometric Isar Imaging on Maritime Target Applications: Simulation of Realistic Targets and Dynamics

Felguera-Martin¹,

González-Partida²,

Burgos-García³

2012

PIER

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Abstract-ISAR imaging of maritime targets has greater success than other ISAR applications due to the constant oscillatory motions induced by waves and wind. However, relative target motions are usually unknown, difficult focusing, image interpretation and target classification. Using interferometry to obtain the height information makes possible to obtain a 3-D reconstruction of a target, aiding image focusing, image interpretation and target classification. However, the information and utility of the ISAR image and the interferometric information depends highly on geometry and targets dynamics. In this paper we will study the influence of movement dynamics in interferometric ISAR imaging using a realistic extended moving target simulation, a general geometry and complex dynamics models.

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Section: Inisar Signal Processingmentioning

confidence: 99%

Interferometric Isar Imaging on Maritime Target Applications: Simulation of Realistic Targets and Dynamics

Felguera-Martin¹,

González-Partida²,

Burgos-García³

2012

PIER

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“…In order to enhance the target recognition probability, the interferometric ISAR (InISAR) [6][7][8][9][10][11][12] technique is presented to achieve the third dimension of the target. In traditional InISAR imaging systems, three receiving antennas are commonly used.…”

Section: Introductionmentioning

confidence: 99%

Interferometric inverse synthetic aperture radar imaging for space targets based on wideband direct sampling using two antennas

Tian

Liu

Chen

2014

J. Appl. Remote Sens

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Interferometric inverse synthetic aperture radar (InISAR) imaging provides complementary information to monostatic inverse synthetic aperture radar (ISAR) imaging. This paper proposes a new InISAR imaging system for space targets based on wideband direct sampling using two antennas. The system is easy to realize in engineering since the motion trajectory of space targets can be known in advance, which is simpler than that of three receivers. In the preprocessing step, high speed movement compensation is carried out by designing an adaptive matched filter containing speed that is obtained from the narrow band information. Then, the coherent processing and keystone transform for ISAR imaging are adopted to reserve the phase history of each antenna. Through appropriate collocation of the system, image registration and phase unwrapping can be avoided. Considering the situation not to be satisfied, the influence of baseline variance is analyzed and compensation method is adopted. The corresponding size can be achieved by interferometric processing of the two complex ISAR images. Experimental results prove the validity of the analysis and the three-dimensional imaging algorithm. Downloaded From: http://remotesensing.spiedigitallibrary.org/ on 05/19/2015 Terms of Use: http://spiedl.org/termsFig. 7 The distribution of dimensions in ISAR image. Tian et al.: Interferometric inverse synthetic aperture radar imaging for space targets.

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“…The rotational motion is beneficial to ISAR imaging whereas the existence of translational motion deteriorates the performance and must be accurately determined and compensated [7,8]. Therefore, translational motion compensation is the fundamental requirement in ISAR imaging, which can usually be carried out by two steps: envelop alignment and phase compensation.…”

Section: Introductionmentioning

confidence: 99%

Coherent Phase Compensation Method Based on Direct if Sampling in Wideband Radar

Lin¹,

Chen²,

Zhang³

et al. 2013

PIER

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Abstract-In order to eliminate the negative influence of the rotational phase component (RPC) of target prominent scattering centres on the performance of Doppler centroid tracking (DCT) method, a coherent phase compensation method is proposed. The coherence of echo pulses sampled directly in intermediate frequency (IF) is firstly analyzed and proved.Based on the coherence property, the proposed approach improves the translational phase component (TPC) estimation accuracy of DCT. Compared to the modified Doppler centroid tracking (MDCT) algorithm, the proposed method achieves better phase compensation performance with simpler operations. Both the theoretical analysis and experimental results based on the real ISAR data prove the effectiveness and efficiency of the presented strategy.

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Interferometric Isar Three-Dimensional Imaging Using One Antenna

Cited by 12 publications

References 8 publications

Interferometric Isar Imaging on Maritime Target Applications: Simulation of Realistic Targets and Dynamics

Interferometric Isar Imaging on Maritime Target Applications: Simulation of Realistic Targets and Dynamics

Interferometric inverse synthetic aperture radar imaging for space targets based on wideband direct sampling using two antennas

Coherent Phase Compensation Method Based on Direct if Sampling in Wideband Radar

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