Yaling Zhu

End-to-end constellation shaping for fiber-terahertz integrated communications

Xujia Zhang, Chongfu Zhang, Yaling Zhu, Yan Zheng et autres

In 6G areas such as wireless fronthaul and access networks, the coexistence of multiple linear and nonlinear distortions in fiber-terahertz links poses significant challenges for achieving high spectral efficiency. In this paper, we propose an end-to-end four-dimensional joint geometric and probabilistic shaping …

The Robotic Multiobject Focal Plane System of the Dark Energy Spectroscopic Instrument (DESI)

J. Silber, Parker Fagrelius, Kevin Fanning, M. Schubnell et autres

Abstract A system of 5020 robotic fiber positioners was installed in 2019 on the Mayall Telescope, at Kitt Peak National Observatory. The robots automatically retarget their optical fibers every 10–20 minutes, each to a precision of several microns, with a reconfiguration time …

us, es, ch, gb, fr, ca (code pays fourni par la source)

The DESI Experiment Part II: Instrument Design

Amir Aghamousa, Steve Ahlen, Shadab Alam, Carlos Allende Prieto et autres

DESI (Dark Energy Spectropic Instrument) is a Stage IV ground-based dark energy experiment that will study baryon acoustic oscillations and the growth of structure through redshift-space distortions with a wide-area galaxy and quasar redshift survey. The DESI instrument is a robotically-actuated, fiber-fed …

kr, us, gb, es, fr, ch, cl, mx (code pays fourni par la source)

The DESI Experiment Part I: Science,Targeting, and Survey Design

Amir Aghamousa, Steve Ahlen, Shadab Alam, Carlos Prieto et autres

DESI (Dark Energy Spectroscopic Instrument) is a Stage IV ground-based dark energy experiment that will study baryon acoustic oscillations (BAO) and the growth of structure through redshift-space distortions with a wide-area galaxy and quasar redshift survey. To trace the underlying dark matter …

kr, us, es, fr, gb, ca, ch, cl, mx, cn, it (code pays fourni par la source)