Long-Base Line (LBL)

Long-Base Line (LBL) is a precise measurement method used in satellite-based positioning, such as in geodesy and space tracking. It involves using two or more ground stations separated by a known, fixed distance (the "baseline") to observe a satellite simultaneously. By measuring the difference in the satellite’s signals received at each station, scientists can accurately determine the satellite’s position or the exact distance between the stations. LBL provides high accuracy over long distances, making it valuable for mapping, Earth studies, and space research.