On the Use of Preconditioners to Improve the Accuracy and Effectiveness of Iterative Methods to Enhance the Spatial Resolution of Radiometer Measurements

Alparone Matteo; Nunziata Ferdinando; Estatico Claudio; Migliaccio Maurizio

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On the Use of Preconditioners to Improve the Accuracy and Effectiveness of Iterative Methods to Enhance the Spatial Resolution of Radiometer Measurements

机译：关于使用预处理器来提高迭代方法的准确性和有效性，以提高辐射计测量的空间分辨率

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摘要

In this letter, a new approach is proposed to ameliorate the performance of iterative gradient-like regularization schemes aimed at enhancing the spatial resolution of microwave radiometer measurements in the Hilbert space. The approach consists of preconditioning the ill-conditioned discrete problem to let the iterative gradient-based inversion technique be more computer-time effective. Experiments undertaken on the simulated radiometer brightness profiles demonstrate the soundness of the proposed rationale that outperforms conventional gradient-like methods in terms of both computer-time effectiveness and accuracy in reconstructing spot-like discontinuities while resulting in larger fluctuations over the background.

机译：在这封信中，提出了一种新的方法来改善迭代梯度样的正则化方案的性能，旨在提高希尔伯特空间中微波辐射计测量的空间分辨率。该方法包括预处理不良的离散问题，以使迭代梯度的反转技术更加计算机时间有效。在模拟辐射计亮度型材上进行的实验证明了所提出的理由的声音，以便在重建点状的不连续性的计算机时间效率和准确性方面优于传统的梯度样方法，同时导致背景上的波动较大。

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来源
《IEEE Geoscience and Remote Sensing Letters》 |2021年第3期|446-450|共5页
作者
Alparone Matteo; Nunziata Ferdinando; Estatico Claudio; Migliaccio Maurizio;
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作者单位

Univ Napoli Parthenope Dipartimento Ingn I-80143 Naples Italy;

Univ Napoli Parthenope Dipartimento Ingn I-80143 Naples Italy;

Univ Genoa Dipartimento Matemat I-16146 Genoa Italy;

Univ Napoli Parthenope Dipartimento Ingn I-80143 Naples Italy;

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正文语种 eng
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关键词
Microwave radiometry; Iterative methods; Convergence; Temperature measurement; Image reconstruction; Microwave measurement; Microwave antennas; Inverse problem; microwave radiometer (MWR); preconditioning; resolution enhancement;

机译：微波辐射测量;迭代方法;收敛;温度测量;图像重建;微波测量;微波天线;逆问题;微波辐射计（MWR）;预处理;分辨率增强;

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1. A Multichannel Data Fusion Method to Enhance the Spatial Resolution of Microwave Radiometer Measurements [J] . Alparone Matteo, Nunziata Ferdinando, Estatico Claudio, IEEE Transactions on Geoscience and Remote Sensing . 2021,第3期

机译：多通道数据融合方法，以增强微波辐射计测量的空间分辨率
2. High spatial resolution speckle tracking improves accuracy of 2-dimensional strain measurements: an update on a new method in functional echocardiography. [J] . Korinek J, Kjaergaard J, Sengupta PP, Journal of the American Society of Echocardiography: official publication of the American Society of Echocardiography . 2007,第2期

机译：高空间分辨率散斑跟踪可提高二维应变测量的准确性：功能超声心动图新方法的更新。
3. Conjugate Gradient Method in Hilbert and Banach Spaces to Enhance the Spatial Resolution of Radiometer Data [J] . Lenti Flavia, Nunziata Ferdinando, Estatico Claudio, Geoscience and Remote Sensing, IEEE Transactions on . 2016,第1期

机译：Hilbert和Banach空间中的共轭梯度法可提高辐射计数据的空间分辨率
4. Combining microwave radiometer and wind profiler radar measurements to improve accuracy and resolution of atmospheric humidity profiling [C] . Laura Bianco, Domenico Cimini, Frank Marzano, IEEE International Geoscience and Remote Sensing Symposium . 2003

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5. High Spatial Resolution Measurements Using Hydrogeophysical Methods Reveal the Presence of Hotspots for Biogenic Gas Accumulation and Release in the Florida Everglades [D] . Bole, Troy 2019

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6. Cerebral Aneurysm Pulsation: Do Iterative Reconstruction Methods Improve Measurement Accuracy In Vivo? [O] . T. Illies, D. Säring, M. Kinoshita, 2014

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7. An Adaptive $L^{p}$ -Penalization Method to Enhance the Spatial Resolution of Microwave Radiometer Measurements [O] . Matteo Alparone, Ferdinando Nunziata, Claudio Estatico, 2019

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8. Study to Improve the Accuracy and Resolution of Fps-16 Radar/ Jimsphere Wind Measurements Final Report [R] . De Mandel, R. E., Krivo, S. J. 1971

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On the Use of Preconditioners to Improve the Accuracy and Effectiveness of Iterative Methods to Enhance the Spatial Resolution of Radiometer Measurements

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