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Impacts of ionospheric scintillation on the BIOMASS P-Band satellite SAR

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Impacts of ionospheric scintillation on the BIOMASS P-Band satellite SAR. / Rogers, Neil; Quegan, Shaun; Kim, Jun Su; Papathanassiou, Kostas.

In: IEEE Transactions on Geoscience and Remote Sensing, Vol. 52, No. 3, 03.2014, p. 1856-1868.

Research output: Contribution to journalJournal articlepeer-review

Harvard

Rogers, N, Quegan, S, Kim, JS & Papathanassiou, K 2014, 'Impacts of ionospheric scintillation on the BIOMASS P-Band satellite SAR', IEEE Transactions on Geoscience and Remote Sensing, vol. 52, no. 3, pp. 1856-1868. https://doi.org/10.1109/TGRS.2013.2255880

APA

Rogers, N., Quegan, S., Kim, J. S., & Papathanassiou, K. (2014). Impacts of ionospheric scintillation on the BIOMASS P-Band satellite SAR. IEEE Transactions on Geoscience and Remote Sensing, 52(3), 1856-1868. https://doi.org/10.1109/TGRS.2013.2255880

Vancouver

Rogers N, Quegan S, Kim JS, Papathanassiou K. Impacts of ionospheric scintillation on the BIOMASS P-Band satellite SAR. IEEE Transactions on Geoscience and Remote Sensing. 2014 Mar;52(3):1856-1868. https://doi.org/10.1109/TGRS.2013.2255880

Author

Rogers, Neil ; Quegan, Shaun ; Kim, Jun Su ; Papathanassiou, Kostas. / Impacts of ionospheric scintillation on the BIOMASS P-Band satellite SAR. In: IEEE Transactions on Geoscience and Remote Sensing. 2014 ; Vol. 52, No. 3. pp. 1856-1868.

Bibtex

@article{b17482d6eb994442b9f65958d97a1804,
title = "Impacts of ionospheric scintillation on the BIOMASS P-Band satellite SAR",
abstract = "The European Space Agency is conducting studies for a low-earth orbiting polarimetric synthetic aperture radar called BIOMASS to provide global measurements of forest biomass and tree height. Phase scintillation across the synthetic aperture caused by ionospheric irregularities can degrade the impulse response function (IRF) and cause squinting, and its temporal variation can cause decorrelation in repeat-pass interferometry. These effects are simulated for a range of conditions for the baseline BIOMASS system configuration using the Wideband model of scintillation, which predicts that for a dawn-dusk orbit, impacts of scintillation over forest regions are negligible under all conditions except at high latitudes in the North American sector under high sunspot activity. In this sector, single-look IRFs have mean integrated sidelobe ratios (ISLRs) and peak sidelobe ratios (PSLRs) better than 0 and -5 dB, respectively, at 90% confidence interval under median solar activity up to the northern tree line (~70° geomagnetic). Degradation in the mean 3-dB resolution of up to 10% is predicted, with mean absolute azimuth shifts of the IRF peak of up to 2 m, which increases to 5 m at high sunspot number. Similar values are found for the dawn and dusk sides, and seasonal variations are negligible for latitudes below the tree line. Repeat-pass interferometric image pairs maintain coherence > 0.8 up to 50° N under median sunspot conditions. Four-look processing improves the ISLR and PSLR by several decibels, but causes significant degradation of the 3-dB resolution due to incoherent averaging of images with different random azimuth shifts.",
keywords = "ionosphere, radio propagation, spaceborne radar, synthetic aperture radar (SAR)",
author = "Neil Rogers and Shaun Quegan and Kim, {Jun Su} and Kostas Papathanassiou",
year = "2014",
month = mar,
doi = "10.1109/TGRS.2013.2255880",
language = "English",
volume = "52",
pages = "1856--1868",
journal = "IEEE Transactions on Geoscience and Remote Sensing",
issn = "0196-2892",
publisher = "IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC",
number = "3",

}

RIS

TY - JOUR

T1 - Impacts of ionospheric scintillation on the BIOMASS P-Band satellite SAR

AU - Rogers, Neil

AU - Quegan, Shaun

AU - Kim, Jun Su

AU - Papathanassiou, Kostas

PY - 2014/3

Y1 - 2014/3

N2 - The European Space Agency is conducting studies for a low-earth orbiting polarimetric synthetic aperture radar called BIOMASS to provide global measurements of forest biomass and tree height. Phase scintillation across the synthetic aperture caused by ionospheric irregularities can degrade the impulse response function (IRF) and cause squinting, and its temporal variation can cause decorrelation in repeat-pass interferometry. These effects are simulated for a range of conditions for the baseline BIOMASS system configuration using the Wideband model of scintillation, which predicts that for a dawn-dusk orbit, impacts of scintillation over forest regions are negligible under all conditions except at high latitudes in the North American sector under high sunspot activity. In this sector, single-look IRFs have mean integrated sidelobe ratios (ISLRs) and peak sidelobe ratios (PSLRs) better than 0 and -5 dB, respectively, at 90% confidence interval under median solar activity up to the northern tree line (~70° geomagnetic). Degradation in the mean 3-dB resolution of up to 10% is predicted, with mean absolute azimuth shifts of the IRF peak of up to 2 m, which increases to 5 m at high sunspot number. Similar values are found for the dawn and dusk sides, and seasonal variations are negligible for latitudes below the tree line. Repeat-pass interferometric image pairs maintain coherence > 0.8 up to 50° N under median sunspot conditions. Four-look processing improves the ISLR and PSLR by several decibels, but causes significant degradation of the 3-dB resolution due to incoherent averaging of images with different random azimuth shifts.

AB - The European Space Agency is conducting studies for a low-earth orbiting polarimetric synthetic aperture radar called BIOMASS to provide global measurements of forest biomass and tree height. Phase scintillation across the synthetic aperture caused by ionospheric irregularities can degrade the impulse response function (IRF) and cause squinting, and its temporal variation can cause decorrelation in repeat-pass interferometry. These effects are simulated for a range of conditions for the baseline BIOMASS system configuration using the Wideband model of scintillation, which predicts that for a dawn-dusk orbit, impacts of scintillation over forest regions are negligible under all conditions except at high latitudes in the North American sector under high sunspot activity. In this sector, single-look IRFs have mean integrated sidelobe ratios (ISLRs) and peak sidelobe ratios (PSLRs) better than 0 and -5 dB, respectively, at 90% confidence interval under median solar activity up to the northern tree line (~70° geomagnetic). Degradation in the mean 3-dB resolution of up to 10% is predicted, with mean absolute azimuth shifts of the IRF peak of up to 2 m, which increases to 5 m at high sunspot number. Similar values are found for the dawn and dusk sides, and seasonal variations are negligible for latitudes below the tree line. Repeat-pass interferometric image pairs maintain coherence > 0.8 up to 50° N under median sunspot conditions. Four-look processing improves the ISLR and PSLR by several decibels, but causes significant degradation of the 3-dB resolution due to incoherent averaging of images with different random azimuth shifts.

KW - ionosphere

KW - radio propagation

KW - spaceborne radar

KW - synthetic aperture radar (SAR)

U2 - 10.1109/TGRS.2013.2255880

DO - 10.1109/TGRS.2013.2255880

M3 - Journal article

VL - 52

SP - 1856

EP - 1868

JO - IEEE Transactions on Geoscience and Remote Sensing

JF - IEEE Transactions on Geoscience and Remote Sensing

SN - 0196-2892

IS - 3

ER -