A dual-model-based inversion method for integrated aperture radiometer imaging

Jianfei Chen, Li Zhu, Yuehua Li

Article ID: 1720
Vol 2, Issue 1, 2019, Article identifier:50-55

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Abstract


To address the problem that the imaging inversion method based on a single model in integrated aperture imaging is difficult to effectively correct model errors and perform accurate image reconstruction, a dual-model (DM)-based integrated aperture imaging inversion method is proposed for correcting the parametric errors of the inversion model and performing highly accurate millimeter-wave image reconstruction of the target scene. In view of the different parameter sensitivities of the Fourier transform (MFFT) model and the G-matrix (GM) model, the proposed DM method first corrects the imaging parameters with errors accurately by comparing the reconstruction errors of the two models; then recon-structs a high-precision target image based on the accurate GM model with the help of an improved regularization method. It is proved by simulation experiments that the proposed DM method can effectively correct the parameter errors of the imaging model and reconstruct the target scene with high accuracy in millimeter wave images compared with the traditional single-model imaging method.


Keywords


Millimeter Wave; Integrated Aperture; Radiometer; Imaging Method; Regularization

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References


Zhang X, Gao Z, Li S. Zonghe kongjing wuyuan chengxiang tance xitong zhenlie texing fenxi (Chinese) [The characteristic of antenna array of passive synthetic aperture imaging system for target detection]. Journal of Microwaves 2018; 34(2): 56–60.

Miao J, Zheng C, Hu A, et al. Beidong haomibo shishi chengxiang jishu (Chinese) [Real-time passive millimeter wave imaging technology]. Journal of Microwaves 2013; 29(S1): 100–112.

Martin-Neira M, LeVine D, Kerr Y, et al. Microwave interferometric radiometry in remote sensing: An invited historical review. Radio Science 2014; (49): 415–449.

Chen J, Li Y, Wang J, et al. An accurate imaging algorithm for millimeter wave synthetic aperture imaging radiometer in near-field. Progress in Electromagnetics Research-Pier 2013; (141): 517–535.

Zhou X, Sun H, He J, et al. NUFFT-based iterative reconstruction algorithm for synthetic aperture imaging radiometers. IEEE Geoscience and Remote Sensing Letters 2009; 6(2): 273–276.

Feng L, Li Q, Chen K, et al. The gridding method for image reconstruction of nonuniform aperture synthesis radiometers. IEEE Geoscience and Remote Sensing Letters 2015; 12(2): 274–278.

Wu J, Zhang C, Liu H, et al. Performance analysis of circular antenna array for microwave interferometric radiometers. IEEE Transactions on Geoscience and Remote Sensing 2017; 55(6): 3261–3271.

Beck A, Teboulle M. Fast gradient-based algorithms for constrained total variation image denoising and deblurring problems. IEEE Trans Image Process 2009; (18): 2419–2434.




DOI: http://dx.doi.org/10.24294/irr.v2i1.1720

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