Method for reception improvement of a FM tuner in a common channel situation

摘要

A method for reception improvement of a FM tuner receiving at least a first and a second FM broadcast signal, in a common channel, Co-C, situation, comprising the steps of: providing a first and a second FM front-end; for outputting a first signal and a second signal, respectively, corresponding to the received first and second FM broadcast signals; selecting a currently preferred signal of the first and the second signal; outputting the currently preferred signal as an IF signal; providing a previously preferred signal by delaying the currently preferred signal; and wherein selecting the currently preferred signal of the first and the second signal comprises determining if a Co-C situation has occurred and in case it is determined that a Co-C situation has not occurred determining a first phase diversity comprising first phase diversity parameters based on the first and the second signal; and selecting the currently preferred signal based on the result of the first phase diversity; and in case it is determined that a Co-C situation has occurred, calculating a first correlation of two input signals, wherein a first input signal is based on the previously preferred signal and a second input signal is based on the first signal, and calculating a second correlation of two other input signals, wherein a first other input signal is based on the previously preferred signal and a second other input signal is based on the second signal, and selecting the currently preferred signal of the first and the second signal based on which of the first and the second correlations shows a larger consistency value.