{'fraction_non_alphanumeric': 0.011494252873563218, 'fraction_numerical': 0.0, 'mean_word_length': 5.394495412844036, '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}}
Analysis of Ionospheric Effects on the Propagation of Chaotic Signals

In this paper, the analysis of the influence of the ionosphere on the propagation of chaotically modulated electromagnetic waves is performed. Differential chaotic shift keying is very useful as communication system. Chaotic modulations with discrete chaotic systems such as tent map, logistic map and PWAM map were realized. The robustness of chaotic signals to changes that occur during their passage through the turbulent ionosphere was investigated. Time delays as well as phase and frequency offset of chaotic signals were compared. Simulations and modeling of the communication system were performed in MATLAB Simulink.