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. B. 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

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

The Antarctic Impulsive Transient Antenna (ANITA) is a NASA long-duration balloon experiment with the primary goal of detecting ultra-high-energy (>1018eV) 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 ANITA-III due to reduction of narrow-band, anthropogenic noise before a trigger decision is made.

Keywords

  • Military communications satellites
  • Neutrino radio detection
  • Notch filtering
  • Ultra-high-energy

Fingerprint

Dive into the research topics of 'Dynamic tunable notch filters for the Antarctic Impulsive Transient Antenna (ANITA)'. Together they form a unique fingerprint.

Cite this