Patent ID: 6977977

Claim:
A method of compensating I and Q gain mismatch in a sequence of input samples received over a channel, said method comprising the steps of: splitting said input samples into a real component and an imaginary component; calculating a gain estimate g given by ⁢ g = Im ⁡ ( y _ H ) ⁢ Im ⁡ ( H ⁢ h _ ) Im ⁡ ( h _ H ⁢ H H ) ⁢ Im ⁡ ( H ⁢ h _ ) wherein y is a vector of uncompensated training sequence input samples, H is a training sequence convolution matrix, h is a vector of channel estimation taps; and multiplying said imaginary component by 1/g and summing said real component therewith to yield a sequence of compensated input samples.