ABSTRACT
Many of the previous chapters have been concerned with the sound field due to a stationary monopole source above an absorbing ground. For example, the asymptotic solution for a stationary monopole was considered in Chapter 2. However, there is an increasing concern about the noise from all forms of transportation. Such sources are neither stationary nor monopole in nature. We studied the sound field due to a directional source in Chapter 5. In this chapter, we study the effect of source motion on sound propagation outdoors.
