In the course of the study of the transmission properties of broad‐band pseudorandom noise signals as a function of range, water depth, and other environmental parameters, relationship between correlation peak time differences and multipath time differences was determined. Illustrations of the measured cross correlation between a reference and high‐resolution pseudorandom noise signal versus time and calculated ray paths are presented. Peak correlation values range from 0.31 to 0.63 for the demonstration data. Only minor discrepancies were observed in the measured time differences between the correlation peaks and those calculated from XBT data.