Comparative Study of Acoustic Beam forming Techniques for Removal of Interference

Abstract

Beam forming system helps in quality communication by increasing the signal to noise ratio (SNR). The purpose of this system is to recover the source signal from the interference. This paper explains the concept and algorithms of beam forming based on review of relevant literature. Conventional methods as well as advanced algorithms regarding acoustic beam forming are discussed. There are basically two types of beam formers, signal independent beam formers or conventional beam formers and signal dependent beam formers or adaptive beam formers. The main purpose is to allow signal from a desired direction and to remove interference. This paper theoretically compares the features of various techniques, to enable the use of appropriate ones for acoustic beam forming.