GPS completely lost

[Yeager-101]

Thank you very much for the open source algorithm provided by your team. I had this problem during the actual testing process. What will happen if the GPS positioning data is completely lost within a certain period of time? I did a simple test. Within 70 seconds, I directly discarded the GPS positioning information in the last 10 seconds to simulate the loss of GPS positioning information. It turned out that the running trajectory was completely incorrect. Can anyone help me? ? grateful!