Patent ID: 7058148

Claim:
A method for selecting a modulation detector in a receiver which includes at least a first and a second detector, the method comprising: determining at least one cross-correlation value between a stored training sequence and at least one training sequence of a received signal; and selecting a detector used for detection of a signal to be received on the basis of the determined at least one cross-correlation value, wherein the received signal is a complex signal, whereby at least one cross-correlation value to be determined is a complex cross-correlation value and wherein the determining at least one cross-correlation value is performed for a given number of training sequences of the received signal, and the method further comprises: calculating an absolute value of an average of the determined cross-correlation values; selecting the first detector for the detection of the signal to be received if the absolute value of the average of the cross-correlation values exceeds a preset limit value; and selecting the second detector if the absolute value of the average of the cross-correlation values is below a preset limit value.