Patent ID: 7302016

Claim:
A method for determining a phase estimate comprising: receiving a carrier signal r(t) that includes a known number of training bits L 0 ; passing the received signal r(t) through a matched filter having filter output x(t); sampling x(t) and combining the samples into a sample vector x=e jθ p+v defining elements [x(0), x(1), x(2), . . . x(L 0 −1)] T , wherein θ is a phase of the carrier signal, p is a data and intersymbol interference (ISI) vector defining elements [p(0), p(1), p(2), . . . p(L 0 −1)] T , and v is a noise vector; determining a phase estimate from an angle between the sample vector x and a vector derived from one of a pseudo-symbol vector a and the vector p, wherein determining a phase estimate from the angle between x and a vector derived from a further comprises subtracting a phase bias estimate from said angle.