ABSTRACT

A number of alternative types of electronic control system will be described in detail here. First an overview of the different types will be given, then control filter types will be discussed followed by a discussion of the algorithms used for optimising them. Programming an electronic control system is a complex task and optimal performance requires that most of the programming be done in assembler code. Fortunately, with the advent of reasonably priced commercial controllers, it is probably not necessary for most users to know how to program them. Nevertheless even tuning a commercial active noise control system is an acquired art that takes quite a bit of practice to master.