METHOD FOR MEASURING DOPPLER FREQUENCY IN COMMUNICATION SYSTEM

摘要

PURPOSE: A method for measuring Doppler frequency in a communication system is provided to be applied to various systems having different capacity according to Doppler frequency by measuring Doppler frequency by using the slope value of the pilot mean value. CONSTITUTION: A slope estimating unit(402) receives the mean value of a pilot from a channel estimating unit(401) for estimating the slope value of the pilot mean value. A buffer(403) stores the estimated slope value temporarily. A fast fourier transducer(404) performs fast fourier transforms with the slope value stored in the buffer(403). A maximum index detecting part(405) receives N number of vector values transformed by the fast fourier transducer(404) for detecting an index having the largest amplitude. A Doppler frequency detecting part(406) detects Doppler frequency by using the detected index.