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discrimination par polarisations croisées

cross-polarization isolation

communication - iate.europa.eu

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Glori: a gnss-r dual polarization airborne instrument for land surface monitoring... Initial analysis of the data shows that the performance of the GLORI instrument is well within specifications, with a cross-polarization isolation better than −15 dB at all elevations above 45°, a relative polarimetric calibration accuracy better than 0.5...

général - core.ac.uk - PDF: doaj.org

Design of rhombus-shaped slot patch antenna for wireless communications... The antenna also achieves a good cross-polarization isolation of −17 dBic for both left-hand and right-hand polarization at its operating frequency....

PDF: doaj.org

Calibration and validation of the polarimetric radio occultation and heavy precipitation experiment aboard the paz satellite...(e.g., effect of metallic structures nearby the antenna, the Faraday rotation at the ionosphere, signal impurities in the transmission, and altered cross-polarization isolation) are effectively calibrated and corrected, and they have a negligible effect on the final observable....

PDF: www.atmos-meas-tech.net

• fenn and rispin a terrestrial air link for evaluating dual-polarization techniques in satellite communications a terrestrial air link for evaluating dual-polarization techniques in satellite communications... The test data indicate that the terrestrial air link has a high degree of cross-polarization isolation under clear-air conditions and is well suited for evaluating dualpolarization frequency-reuse techniques....

PDF: citeseerx.ist.psu.edu

cross-polar discrimination

communication - iate.europa.eu

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Antenna selection for compact dual-polarized mimo systems with linear receivers... We theoretically analyze the impact of cross-polar discrimination on the achieved antenna selection gain for dual-polarized MIMO channels....

général - core.ac.uk - PDF: www.ece.gatech.edu

Cross-polar reduction in reflectarray antennas by means of element rotation... The results obtained after cross-polar reduction show minimum values of cross-polar discrimination of 35 dB for one polarization and 40 dB for the orthogonal polarization, both in the Tx and Rx-bands

PDF: oa.upm.es

1 multi-polarized channel statistics for outdoorto-indoor and indoor-to-indoor channels... Cross-Polar Discrimination (XPD) and Co-Polar Ratio (CPR) are two important parameters describing multi-polarized channels....

PDF: citeseerx.ist.psu.edu

Accuracy of depolarization and delay spread predictions using advanced ray-based modeling in indoor scenarios... It is shown that the implementation of diffuse scattering into RT significantly increases the accuracy of the cross-polar discrimination prediction, whereas the delay-spread prediction is only marginally improved.

PDF: doaj.org

Half-wave stacked patch antenna with dielectric feed... The increase of the cross-polar discrimination was 2.6...

PDF: citeseerx.ist.psu.edu

cross-polarization discrimination

communication - iate.europa.eu

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Base station antenna with enhanced cross polarization discrimination performance by using horizontal meandered dipole and vertical parasitic elementsThis study is related with the design of a ± 45° dual polarized base station antenna with improved cross-polarization discrimination (XPD) values....

général - core.ac.uk - PDF: aemjournal.org

Mimo in tunnel : impact of polarization and array orientation on the channel characteristics... Emphasis is on the cross-polarization discrimination factor and, for a MIMO configuration, on the correlation between transmitting and receiving array elements, depending on the array orientation...

PDF: biblio.ugent.be

A dual layered loop array antenna for base stations with enhanced cross-polarization discrimination... The combination of these two loop arrays leads to a type of magnetoelectric loop antenna that has stable directivity patterns with high cross-polarization discrimination (XPD) values across a 45.5%...

PDF: hdl.handle.net

cross-polar decoupling

communication - iate.europa.eu

cross-polarization decoupling

communication - iate.europa.eu

XPD

communication - iate.europa.eu

Publications scientifiques

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On the traces of xpd: cell cycle matters - untangling the genotype-phenotype relationship of xpd mutationsAbstractMutations in the human gene coding for XPD lead to segmental progeria - the premature appearance of some of the phenotypes normally associated with aging - which may or may not be accompanied by increased cancer incidence....

général - core.ac.uk - PDF: boris.unibe.ch

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Xpd and its partners in tfiih.Schematic representation of XPD and its interaction partners p44 and MAT1 within the CAK complex of TFIIH....

général - core.ac.uk - PDF: figshare.com

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Both xpd alleles contribute to the phenotype of compound heterozygote xeroderma pigmentosum patientsMutations in the XPD subunit of the DNA repair/transcription factor TFIIH result in the rare recessive genetic disorder xeroderma pigmentosum (XP)....

général - core.ac.uk - PDF: www.pubmedcentral.nih.gov

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Model of the different xpd and xpb functionalities in ner and transcription.(a) In NER, XPD and XPB act as enzymes and have to mediate protein–protein interactions....

général - core.ac.uk - PDF: figshare.com

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Drosophila xpd regulates cdk7 localization, mitotic kinase activity, spindle dynamics, and chromosome segregation... CAK also associates into a tetramer with Xpd, and our analysis of young Drosophila embryos that do not require transcription now suggests a cell cycle function for this interaction....

général - core.ac.uk - PDF: www.pubmedcentral.nih.gov