Effect of Doppler on long‐range sound propagation

In this sound propagation study of the effect of Doppler on long‐range acoustic tracking, a method of modeling the effects of source and/or receiver motion has been developed. It is based on modifying the inputs to existing normal mode software so that the source and/or receiver trajectory and consequent Doppler effects of the given ocean experiment are properly modeled without requiring direct changes in the static software. From this the effects of the received signal after long range, multipath sound propagation from a moving source can be modeled and interpreted.