A method for tuning of a digital radio receiver as well as digital radio receiver

摘要

The oscillation frequency of a local oscillator in order to control a demodulated digital round end receiver a phase reference symbol, which in a data subjected to a round end signal with the orthogonal frequency division is contained, modifies the resulting frequency planes data by multiplication with complex conjugated values of known data which are coded in the phase reference signal, with different assumed frequency dislocations, converts the modified data in time plane data and in this way, a first frequency error detected equal to a multiple of the sub-carriers distance and a second frequency error, the distance of the subcarriers does not exceed. A difference phases detected fault is also. The oscillation frequency is adjusted, in order to the first frequency error and the difference phases for correcting errors; then, the second frequency error, in order to achieve a ambiguity in the difference phases for correcting errors.