{'fraction_non_alphanumeric': 0.01574074074074074, 'fraction_numerical': 0.003703703703703704, 'mean_word_length': 5.107344632768362, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Wide-Area GPS Interference Over Europe From an Unknown Source

Global Navigation Satellite Systems (GNSS) are a key source of position, navigation, and timing in safety critical domains, including aviation. Due to GNSS low signal power when received on Earth's surface the signal is very susceptible to unintentional and intentional jamming. To assess the criticality of GNSS jamming, a long-term monitoring campaign was carried out near airport infrastructure and near highways using verified GNSS jamming detectors on the L1 frequency. The results show a frequent occurrence of GNSS jamming near airport infrastructure due to the illegal use of jammers on board of road traffic with more than 6 events per day with expected impact on GNSS signal reception. The results and their importance and implications are discussed. The results also show a very disturbing occurrence of a wide-area GPS jamming of the L1 frequency detected throughout Europe possibly impacting more than 1 million kilometers squared of area. The impact and possible causes of this phenomenon are discussed.