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Dynamic tunable notch filters for the Antarctic Impulsive Transient Antenna (ANITA) | | P.Allison
; O.Banerjee
; J.J.Beatty
; A.Connolly
; C.Deaconu
; J.Gordon
; P.W.Gorham
; M.Kovacevich
; C.Miki
; E.Oberla
; J.Roberts
; B.Rotter
; S.Stafford
; K.Tatem
; L.Batten
; K.Belov
; D.Z.Besson
; W.R.Binns
; V.Bugaev
; P.Cao
; C.Chen
; P.Chen
; Y.Chen
; J.M.Clem
; L.Cremonesi
; B.Dailey
; P.F.Dowkontt
; S.Hsu
; J.Huang
; R.Hupe
; M.H.Israel
; J.Kowalski
; J.Lam
; J.G.Learned
; K.M.Liewer
; T.C.Liu
; A.Ludwig
; S.Matsuno
; K.Mulrey
; J.Nam
; R.J.Nichol
; A.Novikov
; S.Prohira
; B.F.Rauch
; J.Ripa
; A.Romero-Wolf
; J.Russell
; D.Saltzberg
; D. Seckel
; J.Shiao
; J.Stockham
; M.Stockham
; B.Strutt
; G.S.Varner
; A.G.Vieregg
; S.Wang
; S.A.Wissel
; F.Wu
; R.Young
; | | Date: |
13 Sep 2017 | | Abstract: | The Antarctic Impulsive Transient Antenna (ANITA) is a NASA long-duration
balloon experiment with the primary goal of detecting ultra-high-energy
($>10^{18},mbox{eV}$) neutrinos via the Askaryan Effect. The fourth ANITA
mission, ANITA-IV, recently flew from Dec 2 to Dec 29, 2016. For the first
time, the Tunable Universal Filter Frontend (TUFF) boards were deployed for
mitigation of narrow-band, anthropogenic noise with tunable, switchable notch
filters. The TUFF boards also performed second-stage amplification by
approximately 45 dB to boost the $sim,mumbox{V-level}$ radio frequency (RF)
signals to $sim$ mV-level for digitization, and supplied power via bias tees
to the first-stage, antenna-mounted amplifiers. The other major change in
signal processing in ANITA-IV is the resurrection of the $90^{circ}$ hybrids
deployed previously in ANITA-I, in the trigger system, although in this paper
we focus on the TUFF boards. During the ANITA-IV mission, the TUFF boards were
successfully operated throughout the flight. They contributed to a factor of
2.8 higher total instrument livetime on average in ANITA-IV compared to
ANITA-III due to reduction of narrow-band, anthropogenic noise before a trigger
decision is made. | | Source: | arXiv, 1709.4536 | | Services: | Forum | Review | PDF | Favorites | |
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