Statistics of total attenuation and fade dynamics from measurements in Toulouse of the 19.7 GHz beacon of Eutelsat Hot Bird 6

Boulanger, Xavier; Carrie, G.; Castanet, Laurent; Casadebaig, L.; Gabard, B.

doi:10.1109/eucap.2012.6206630

Cited by 10 publications

(8 citation statements)

References 10 publications

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“…After the loss of the satellite, it was upgraded to receive the 19.7 GHz beacon of Eutelsat HotBird 6 [7][8]. Since March 2011, the beacon receiver is at the third stage of its upgrade by receiving the 20.2 GHz beacon of the ASTRA-3B satellite, along a propagation slant path at θ= 35.2°.…”

Section: A Beacon Receivermentioning

confidence: 99%

Radiometric attenuation for beacon calibration: A preliminary analysis on accuracy and reliability

Mattioli¹,

Bosisio²,

Boulanger³

et al. 2014

The 8th European Conference on Antennas and Propagation (EuCAP 2014)

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A microwave radiometer profiler is used to determine the no-attenuation level relative to which beacon atmospheric attenuation is measured. A technique that can be used for the discrimination of atmospheric conditions (clear-sky, cloudy, rainy) from the measured slant-path brightness temperatures is discussed, with the aim of improving the accuracy and the reliability of the radiometric correction. IndexTerms-microwave radiometer, atmospheric attenuation, beacon calibration.

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Section: A Beacon Receivermentioning

confidence: 99%

Radiometric attenuation for beacon calibration: A preliminary analysis on accuracy and reliability

Mattioli¹,

Bosisio²,

Boulanger³

et al. 2014

The 8th European Conference on Antennas and Propagation (EuCAP 2014)

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“…Unfortunately, this satellite was lost and one of the Earth station RF chains was modified to be able to receive the 19.7 GHz HotBird 6 beacon. The main technical characteristics of the Earth station are described in details in [24] and [25]. Basically, the Earth station consists of a Cassegrain parabolic antenna of 1.20 m diameter with the RF chain immediately placed at the output of the antenna to avoid feeder loss.…”

Section: ) Beacon Receivermentioning

confidence: 99%

“…The radiometer used at ONERA is a TP/WVP-3000 multifrequency radiometer built by Radiometrics (USA) [29], [30], which measures sky brightness temperatures at 12 frequency channels [24], [25]. Five of them are in Ka-band between 22 and 30 GHz corresponding to the water vapor absorption lines.…”

Section: ) Beacon Receivermentioning

confidence: 99%

“…In order to complete 2 years of measurements for the HotBird 6 configuration, the data from April 2011 to June 2011 have been scaled in elevation and frequency according to the methodology described in [24] (only Finally, the experimental CCDFs of total attenuation are compared with ITU-R recommendations and the results are presented in Fig. 12.…”

Section: B Ccdf Of Total Attenuationmentioning

confidence: 99%

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Four Years of Total Attenuation Statistics of Earth-Space Propagation Experiments at Ka-Band in Toulouse

Boulanger

Gabard

Casadebaig

et al. 2015

IEEE Trans. Antennas Propagat.

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The Ka-band propagation experiments conducted by ONERA in Toulouse (43.57 • E, 1.47 • N) in the southwest of France started in 2009 and is still on-going. The equipment comprises a beacon Earth station, a profiling radiometer, and a rain gauge. The ground station measures the received beacon signal using a 10-Hz sampling rate. The profiling radiometer measures the sky brightness temperatures at five Ka-band and seven V-band channels, surface temperature, surface humidity, and surface pressure. From July 2009 to March 2011, the beacon receiver recorded the 19.7-GHz (horizontal polarization) HotBird 6 beacon signal along a slant path of 38.6 • of elevation angle. Since April 2011, the beacon receiver has been recording the 20.2-GHz (vertical polarization) Astra 3B beacon signal along a slant path of 35.1 • of elevation angle. This paper aims at providing a complete description of the ONERA Data Processing Tool (in particular the methodology followed to retrieve total attenuation) used to compute 4 years (from July 2009 to June 2013) of copolar attenuation statistics.The experimental setup and the characteristics of the Earth-space links are briefly described. The complementary cumulative distribution function (CCDF) of total attenuation for the whole period is presented and compared with ITU-R recommendations. The measured CCDF of the rainfall rate is computed and compared with ITU-R Rec. P.837 and will also be used as input for the rain attenuation model given in ITU-R Rec. P.618. The measured CCDFs of total attenuation duration and total attenuation slope are also presented.Index Terms-Astra 3B, propagation, fade duration, fade slope, HotBird 6, Ka-band, rainfall rate, satellite communication systems, total attenuation. 0018-926X

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“…As

c_{U_{X^{*}}} (τ, p_{X^{*}})

refers to the correlation function of the Bernoulli process

U_{X^{*}} (t)

derived from rain attenuation ( X = A ) or rainfall rate ( X = R ) time series, several experimental databases have been considered.Rain attenuation experimental time series X(t) = A(t) (sampling time Δ t = 1s):Seven years of rain attenuation time series collected in Spino d'Adda (45.4°N, 9.5°E), Italy, during the ITALSAT propagation experiment at 18.7, 39.6 and 49.5 GHz between 1994 and 2000 ().Two years and 5 months of rain attenuation time series collected in Darmstadt (49.86°N, 8.63°E), Germany, during the ITALSAT propagation experiment at 18.7 and 39.6 GHz between 1995 and 1997 ().Two years of rain attenuation time series collected in Toulouse (43.57°N, 1.47°E), France, during the HOTBIRD 6 propagation experiment at 19.7 GHz between 2009 and 2011 ().Six years of rain attenuation time series collected in Ottawa (45.35°N, 75.89°E), Canada, during the ANIK F2 propagation experiment at 20.2 GHz between 2006 and 2011 ().Rainfall rate experimental time series X(t) = R(t) (sampling time Δ t = 60 s):Eight years of rainfall rate time series collected in Spino d'Adda (Italy) between 1993 and 2000 ().Three years of rainfall rate time series collected in Ottawa (Canada) between 2009 and 2011 ().…”

Section: Parameterization Of the Variance Of Estimation σE2 Of Yearlymentioning

confidence: 99%

Inter‐annual variability, risk and confidence intervals associated with propagation statistics. Part II: parameterization and applications

Boulanger

Jeannin

Féral

et al. 2013

Satell Commun Network

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This set of two companion papers aims at providing a model for the inter-annual variability of earth-space propagation statistics and for the inherent risk and CIs. In part I, it was proposed to model the yearly variance σ² of empirical complementary CDFs so that σ 2 p ð ÞC the inter-annual climatic variance and p the long-term probability. Particularly, an analytical formulation of σ 2 E was derived and parameterized from synthetic rain attenuation data. Considering the statistical framework developed in part I, this part II is specifically devoted to the parameterization of the variance of estimation σ 2 E from experimental data of rain attenuation and rainfall rate. Then, a methodology to model and parameterize worldwide the inter-annual climatic variance σ 2 C is presented. The model of yearly variance of the empirical complementary CDFs σ 2 ¼ σ 2 C þ σ 2 E is finally compared against yearly experimental variances derived from data collected worldwide. The knowledge of this variability is very useful for system design as it allows the risk on a required availability and associated with a given propagation margin to be quantified.

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Statistics of total attenuation and fade dynamics from measurements in Toulouse of the 19.7 GHz beacon of Eutelsat Hot Bird 6

Cited by 10 publications

References 10 publications

Radiometric attenuation for beacon calibration: A preliminary analysis on accuracy and reliability

Radiometric attenuation for beacon calibration: A preliminary analysis on accuracy and reliability

Four Years of Total Attenuation Statistics of Earth-Space Propagation Experiments at Ka-Band in Toulouse

Inter‐annual variability, risk and confidence intervals associated with propagation statistics. Part II: parameterization and applications

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