{'fraction_non_alphanumeric': 0.01594896331738437, 'fraction_numerical': 0.0, 'mean_word_length': 5.474226804123711, '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}}
Measured-based channel capacity of multimode OAM system with dual-loop receiver

To solve the problem that the channel capacity is seriously affected by imperfect matching of transceiver array apertures, we propose a dual-loop receiver structure of multimode OAM communication based on uniform circular array (UCA) and investigate the channel capacity of OAM system on the basis of real measurements. Both measurement and simulation results show that the proposed OAM dual-loop receiver can effectively alleviate the power leakage caused by beam divergence, and then improve the channel capacity of multimode OAM communication.