Radio detection of cosmic ray air showers in the digital era

Understand

In 1965 it was discovered that cosmic ray air showers emit impulsive radio signals at frequencies below 100 MHz.

• After a period of intense research in the 1960s and 1970s, however, interest in the detection technique faded almost completely.
• With the availability of powerful digital signal processing techniques, new attempts at measuring cosmic ray air showers via their radio emission were started at the beginning of the new millennium.
• Starting with modest, small-scale digital prototype setups, the field has evolved, matured and grown very significantly in the past decade.