A novel method of estimating the differential delay of a sinusoidal signal is considered. The new method utilizes the Propagator Method (PM) which does not require the eigen-decomposition of the cross-spectral matrix (CSM) in estimating the signal frequencies. Such frequency estimation is based on the observation and/or covariance matrices. Computer simulation is performed to validate the new procedure

Paper presented to the 5th Annual Symposium on Graduate Research and Scholarly Projects (GRASP) held at the Hughes Metropolitan Complex, Wichita State University, May 1, 2009.Research completed at the Department of Electrical and Computer Science Engineering, College of Engineering