2022
DOI: 10.1109/tgrs.2022.3219818
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A Novel Channel Inconsistency Estimation Method for Azimuth Multichannel SAR Based on Maximum Normalized Image Sharpness

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Cited by 6 publications
(4 citation statements)
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“…The experimental results in Sections 3 and 4 demonstrate an effective suppression of azimuth ambiguities for different scene targets with the LT-1 DRA mode. The simulation experiment in Section 3 shows that, compared with other SAR systems with shorter wavelength segments, LT-1 adopts an L-band, which can significantly reduce the influence of To quantitatively analyze the image quality, the ghost-real target energy ratio (GTER) [20] is employed to measure the suppression of the ghost target in the final focused image without phase error calibration, which is defined as GTER = 20 log 10 max(|I G |) max(|I R |) (30) where max(|I G |) denotes the maximum amplitude value of pixels of ghost targets, and max(|I R |) denotes the maximum value of pixels of real targets. The GTER result of Target 1 is −52 dB, which shows the LT-1 s sound azimuth ambiguity performance.…”
Section: Discussionmentioning
confidence: 99%
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“…The experimental results in Sections 3 and 4 demonstrate an effective suppression of azimuth ambiguities for different scene targets with the LT-1 DRA mode. The simulation experiment in Section 3 shows that, compared with other SAR systems with shorter wavelength segments, LT-1 adopts an L-band, which can significantly reduce the influence of To quantitatively analyze the image quality, the ghost-real target energy ratio (GTER) [20] is employed to measure the suppression of the ghost target in the final focused image without phase error calibration, which is defined as GTER = 20 log 10 max(|I G |) max(|I R |) (30) where max(|I G |) denotes the maximum amplitude value of pixels of ghost targets, and max(|I R |) denotes the maximum value of pixels of real targets. The GTER result of Target 1 is −52 dB, which shows the LT-1 s sound azimuth ambiguity performance.…”
Section: Discussionmentioning
confidence: 99%
“…To quantitatively analyze the image quality, the ghost-real target energy ratio (GTER) [20] is employed to measure the suppression of the ghost target in the final focused image without phase error calibration, which is defined as The displacement in azimuth and slant range of the first-order ambiguity relative to the primary response is approximately given by [34,35] ∆ az,1 ≈ λPRFR 0 2V s (28)…”
Section: Land and Sea Interface Scenariosmentioning
confidence: 99%
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