A Simultaneous Polarimetric Measurement Scheme Using One Amplitude Modulation Waveform

In order to obtain the target polarization scattering matrix (PSM), a simultaneous polarimetric measurement scheme is designed in this letter. As a complete measurement scheme, one of its hardware implementations is analyzed, and the methods of PSM estimation are proposed. Instead of employing the l...

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Bibliographic Details
Published in:IEEE geoscience and remote sensing letters 2020-01, Vol.17 (1), p.72-76
Main Authors: Li, Chao, Yang, Yong, Pang, Chen, Li, Yong-Zhen, Wang, Xue-Song
Format: Article
Language:English
Subjects:
Amplitude
Amplitude modulation
Coefficients
Correlation coefficient
Correlation coefficients
Delay effects
Delays
Frequency dependence
Frequency modulation
linear frequency modulation (LFM)
Measurement
Noise levels
Noise measurement
Numerical experiments
polarimetric measurement scheme
Polarimetry
Radar polarimetry
Scattering
scattering matrix
Signal to noise ratio
Slope
Slopes
Waveforms
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Description
Summary:In order to obtain the target polarization scattering matrix (PSM), a simultaneous polarimetric measurement scheme is designed in this letter. As a complete measurement scheme, one of its hardware implementations is analyzed, and the methods of PSM estimation are proposed. Instead of employing the linear frequency modulation (LFM) waveforms with opposite slopes, the proposed scheme uses the amplitude-modulated LFM waveforms with a unitary slope. Then, the PSM estimations can be obtained from the measurements. The experimental results demonstrate that the proposed scheme has a potential advantage for the PSM measurement. When the signal-to-noise ratio is greater than 24 dB, the means of polarized correlation coefficients keep higher than 0.9. All these conclusions are verified by numerical experiments.
ISSN:1545-598X
1558-0571
DOI:10.1109/LGRS.2019.2914458