Least mean squares filters suppressing the radio-frequency interference in AERA cosmic ray radio detection

0546223 - FZÚ 2022 RIV US eng J - Journal Article
Szadkowski, Z.
Least mean squares filters suppressing the radio-frequency interference in AERA cosmic ray radio detection.
IEEE Transactions on Nuclear Science. Roč. 67, č. 1 (2020), s. 405-413. ISSN 0018-9499. E-ISSN 1558-1578
Research Infrastructure: AUGER-CZ II - 90102
Keywords : Auger Engineering Radio Array (AERA) * finite impulse response (FIR) * field-programmable gate array (FPGA)
OECD category: Particles and field physics
Impact factor: 1.679, year: 2020
Method of publishing: Limited access
https://doi.org/10.1109/TNS.2019.2948319

The production of radio waves from extensive air showers (EASs), initiated by ultra-high-energy cosmic rays, has been attributed to geomagnetic emission and charge excess processes. These days, the radio detection technique is used in many experiments aimed at studying EAS. One of them is the Auger Engineering Radio Array (AERA), located within the Pierre Auger Observatory. The frequency band observed by AERA radio stations is 30-80 MHz. The investigated frequency range is often very contaminated by human-made and narrow-band radio-frequency interference (RFI). Suppression of these contaminations is crucial to lowering the rate of spurious triggers. An adaptive filter based on the least mean squares (LMS) algorithm can be an alternative one for currently used infinite impulse response (IIR)-notch nonadaptive filters.
Permanent Link: http://hdl.handle.net/11104/0322767