{'fraction_non_alphanumeric': 0.025714285714285714, 'fraction_numerical': 0.0, 'mean_word_length': 5.805825242718447, '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}}
Research on deeply integrated GPS/INS for autonomous train positioning

With the speed-up of trains, the train's positioning environment becomes increasingly complex which requires the train's positioning system have enough anti-interference capability to ensure the precision and reliability of train's positioning. GNSS/INS deeply integrated positioning system could improve the anti-interference ability of the positioning system, achieving real-time positioning with much higher precision and reliability. In this paper, a deeply integrated GNSS/INS strategy for train locating based on vector tracking loop was proposed, and the mathematical model for GNSS/INS integrated system was established.