Allison, P;
Banerjee, O;
Beatty, JJ;
Connolly, A;
Deaconu, C;
Gordon, J;
Gorham, PW;
... Young, R; + view all
(2018)
Dynamic tunable notch filters for the Antarctic Impulsive Transient Antenna (ANITA).
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
, 894
pp. 47-56.
10.1016/j.nima.2018.03.059.
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Abstract
The Antarctic Impulsive Transient Antenna (ANITA) is a NASA longduration balloon experiment with the primary goal of detecting ultra-highenergy (> 1018 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 ∼ µV-level radio frequency (RF) signals to ∼ 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◦ 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 ANITAIII due to reduction of narrow-band, anthropogenic noise before a trigger decision is made.
| Type: | Article |
|---|---|
| Title: | Dynamic tunable notch filters for the Antarctic Impulsive Transient Antenna (ANITA) |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1016/j.nima.2018.03.059 |
| Publisher version: | http://doi.org/10.1016/j.nima.2018.03.059 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Neutrino radio detection, Ultra-high-energy, Notch filtering, Military communications satellites |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10056759 |
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