Patent ID: 6304216
Filing Date: 2001-10-16
Classification: G01S

Abstract:
A signal detector comprising:a receiver for receiving a first segment of a signal, and a second segment of the signal, the first and second segments representing separate and distinct periods of time, and the signal comprising a signal of interest perturbed by noise or pseudo-noise;a correlator coupled to the receiver for deriving first correlation data, representative of the correlation between the first segment and a hypothesis, and second correlation data representative of the correlation between the second segment and the hypothesis; and a combiner coupled to the correlator for determining a parameter difference between the first and second correlation data, for adjusting a selected one of the first and second correlation data responsive to the parameter difference, and combining the adjusted data with the other of the first and second correlation data to obtain cumulative correlation data useful for detecting the signal of interest or a parameter of the signal of interest.