Equatorial Ionospheric Scintillation Measurement in Advanced Land Observing Satellite (ALOS) Phased Array-Type L-Band Synthetic Aperture Radar (PALSAR) Observations

Ji, Yifei; Dong, Zhen; Zhang, Yongsheng; Tang, Feixiang; Mao, Wenfei; Zhao, Haisheng; Xu, Zhengwen; Zhang, Qingjun; Zhao, Bingji; Gao, Heli

doi:10.1016/j.eng.2024.01.027

Cited by 7 publications

(1 citation statement)

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“…Unlike conventional single-polarization SAR, PolSAR actively retrieves polarization information from surface scattering, offering a larger set of parameters to characterize electromagnetic scattering properties. For effective classification of polarimetric SAR data, these polarization features from PolSAR images must be comprehensively explored and leveraged within widely adopted deep learning algorithms and SAR systems are developing rapidly, and relevant scholars have conducted in-depth research on issues such as SAR imaging [4,5].…”

Section: Introductionmentioning

confidence: 99%

Research on Input Schemes for Polarimetric SAR Classification Using Deep Learning

Zhang,

Cui,

Zhang

et al. 2024

Remote Sensing

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This study employs the reflection symmetry decomposition (RSD) method to extract polarization scattering features from ground object images, aiming to determine the optimal data input scheme for deep learning networks in polarimetric synthetic aperture radar classification. Eight distinct polarizing feature combinations were designed, and the classification accuracy of various approaches was evaluated using the classic convolutional neural networks (CNNs) AlexNet and VGG16. The findings reveal that the commonly employed six-parameter input scheme, favored by many researchers, lacks the comprehensive utilization of polarization information and warrants attention. Intriguingly, leveraging the complete nine-parameter input scheme based on the polarization coherence matrix results in improved classification accuracy. Furthermore, the input scheme incorporating all 21 parameters from the RSD and polarization coherence matrix notably enhances overall accuracy and the Kappa coefficient compared to the other seven schemes. This comprehensive approach maximizes the utilization of polarization scattering information from ground objects, emerging as the most effective CNN input data scheme in this study. Additionally, the classification performance using the second and third component total power values (P2 and P3) from the RSD surpasses the approach utilizing surface scattering power value (PS) and secondary scattering power value (PD) from the same decomposition.

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Section: Introductionmentioning

confidence: 99%