- ホーム
- > 洋書
- > 英文書
- > Science / Mathematics
Full Description
This book highlights the mathematical, physical, and technical properties of moving acoustic sources. Authors consider point sources and infinite or finite line sources moving along various curves in three-dimensional space. After studying the general theory of such sources, the frequency spectrum and the associated Doppler shift are derived explicitly for different trajectories. The sound radiation in half-spaces with a locally reacting and homogeneous ground is investigated in detail based on the knowledge of closed-form solutions for the stationary impulse response. An important field of application is the localization of moving sources. Among other approaches, an equivalent source method in the time domain is used to develop an effective source localisation method. Important practical applications are explored with these techniques, e.g. the detection of noise sources from trains and airplanes.
The research results published in this book are mainly obtained within the three-year project "Localization and identification of moving noise sources" funded by the German Research Foundation.
Contents
Introduction.- The frequency spectrum of moving sources.- Sound field of a source moving in half space in time domain.- The equivalent source method in time domain.- The equivalent source method for localization of moving source.- Final remarks and outlook.- References.- Index.
