# Reconstruction of air-shower measurements with AERA in the presence of pulsed radio-frequency interference

## TL;DR

This paper discusses methods used by AERA to identify and suppress pulsed radio-frequency interference, enabling accurate air-shower measurements despite challenging RFI conditions.

## Contribution

It introduces strategies for noise suppression in radio data that can be adopted by similar experiments facing pulsed RFI challenges.

## Key findings

- Effective noise suppression algorithms achieved high purity in air-shower reconstruction.
- Quantitative assessment of noise suppression efficiency provided.
- Strategies are applicable to other radio-based experiments in noisy environments.

## Abstract

The Auger Engineering Radio Array (AERA) is situated in the Argentinian Pampa Amarilla, a location far away from large human settlements. Nevertheless, a strong background of pulsed radio-frequency interference (RFI) exists on site, which not only makes radio self-triggering challenging but also poses a problem for an efficient and pure reconstruction of air-shower measurements. We present how our standard event reconstruction exploits several strategies to identify and suppress pulsed noise, and quantify the efficiency and purity of our algorithms. These strategies can be employed by any experiment taking radio data in the presence of pulsed RFI.