René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"MRAR messages","articleBody":"Hi all,\r\n\r\nI'm developing a C++ library in order to decode enhanced squitter and Mode-S messages taking pyModeS as reference so to be able to confront decoded messages.\r\n\r\nI'm interested in determining the positions of aircrafts and to have some positions related meteo data.\r\n\r\nI'm correctly getting and identifying aircrafts and their positions (DF17). I store aircrafts' data in a live map where the key is the transponder id (addr as per pyModeS) and the value is a suitable data structure to hold positions and other metadata.\r\nI'm able to correctly decode MRAR Mode-S messages, confronting them with pyModeS decoder I get the same results on both sides.\r\n\r\nBut the transponder id I get from MRAR messages is almost **never** contained in my identified aircrafts' map. I wish to be able to relate meteo data with the source position. When the transponder id is (rarely) found in the map and has at least one position, meteo data are always void and this seems to always happen for small aircrafts (cessna, etc... ), so it seems that I can get positons or, (exclusively) meteo data.\r\n\r\nHas anyone some suggestion? Am I trying to do something not feasible?\r\n\r\nThanks for any answer, have a nice day.","author":{"url":"https://github.com/lucapaganotti","@type":"Person","name":"lucapaganotti"},"datePublished":"2023-06-23T09:15:25.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":3},"url":"https://github.com/154/pyModeS/issues/154"}