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Ascending–Descending Bias Correction of Microwave Radiation Imager on Board FengYun-3C
IEEE Transactions on Geoscience and Remote Sensing, 2019Microwave radiation imager (MWRI) is regarded as one of the most important microwave payloads on board China FengYun-3C Meteorological Satellite. The instrument suffers from calibration anomalies and exhibits observation- background (O-B) calibration bias difference between the ascending and descending passes at all channels (hereinafter AD bias).
Songyan Gu, Xinxin Xie, Shengli Wu
exaly +3 more sources
Microwave radiation imaging approach based on sparse representation
2016 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2016Based on sparsity or compressibility of microwave radiation images, Compressive Sensing in this paper is adopted to achieve microwave radiation imaging in order to reduce the complexity and hardware cost of the imaging system and get the image of high spatial resolution.
Xiaocheng Yang +6 more
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Microwave Imaging for Monitoring Patients Post-Radiation Treatment: an initial investigation
2021 15th European Conference on Antennas and Propagation (EuCAP), 2021In this preliminary study, we investigate how changes in breast tissue due to treatment can be quantified using microwave signals, images, and property estimates. Microwave scans of treated and healthy breasts from a group of cancer patients before and after radiation treatment are compared.
Katrin Smith +6 more
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In-Orbit Calibration Uncertainty of the Microwave Radiation Imager on board Fengyun-3C
Journal of Meteorological Research, 2021This study evaluates the in-orbit calibration uncertainty (CU) for the microwave radiation imager (MWRI) onboard the Chinese polar-orbiting meteorological satellite Fengyun-3C (FY-3C). Uncertainty analysis of the MWRI provides a direct link to the calibration system of the sensor and quantifies the calibration confidence based on the prelaunch and ...
Xinxin Xie +4 more
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Microwave Holographic Imaging Using the Antenna Phaseless Radiation Pattern
IEEE Antennas and Wireless Propagation Letters, 2012In this letter, we propose a three-dimensional microwave holographic imaging approach for the cases where the object is in the far zone of the antenna but the measurements are performed in the near zone of the scattering object. Typical applications include concealed weapon detection, through-the-wall imaging, etc.
R. K. Amineh, J. McCombe, N. K. Nikolova
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Suppressing Sidelobe Artifacts in Microwave Images of Undersampled Radiation Fields
Topical Meeting On Signal Recovery and Synthesis II, 1986Microwave images of coherent targets obtained by using thinned random arrays will contain huge sidelobe artifacts. We present a method for suppressing these artifacts.
Harish M. Subbaram, Bernard D. Steinberg
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Global Soil Moisture Retrievals From the Chinese FY-3D Microwave Radiation Imager
IEEE Transactions on Geoscience and Remote Sensing, 2021The FengYun-3 (FY-3) series satellite is the second generation of Chinese polar-orbiting meteorological satellite missions. The FY-3D satellite was launched on November 2017 and has been providing valuable data for meteorological applications, including brightness temperature ( $T_{B}$ ) data from the MicroWave Radiation Imager (MWRI).
Chuen Siang Kang +9 more
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Nonparametric Bayesian Dictionary Learning for Microwave Radiation Image Recovery
2019 IEEE 4th International Conference on Signal and Image Processing (ICSIP), 2019One of the challenges in microwave radiation image (MRI) recovery is contradiction between getting the image of high spatial resolution and reducing the complexity and hardware cost of the imaging system. Considering that MRI has good sparse characteristic in the differential domain, this paper proposes a total variation based nonparametric Bayesian ...
Lu Zhu +3 more
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IEEE International Workshop on Imaging Systems and Techniques, 2005, 2006
The main topic of this paper belongs to the Vivaldi aerial analysis. A current distribution on the antenna surface closed form in agreement with numerical simulation results is presented. By starting from the proposed current distribution, the equations for the electrical potentials and radiation pattern are derived. The integral equations obtained for
M. CHIAPPE, GRAGNANI, GIAN LUIGI
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The main topic of this paper belongs to the Vivaldi aerial analysis. A current distribution on the antenna surface closed form in agreement with numerical simulation results is presented. By starting from the proposed current distribution, the equations for the electrical potentials and radiation pattern are derived. The integral equations obtained for
M. CHIAPPE, GRAGNANI, GIAN LUIGI
openaire +2 more sources
A two-dimensional microwave radiation imaging method based on data fusion
ISAPE2012, 2012Two-dimensional microwave imaging radiometers (TDMIR) are potential powerful instruments for high resolution observation of planetary surfaces. The prototype of TDMIR based on minimum-redundancy linear array and mechanical scanning is described. This paper deals with the reconstruction of radiometric brightness temperature maps from TDMIR measurements.
Yuanyuan Liu, Lu Zhu, Dechang Huang
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