Test and analysis of the fundamental functions of digital signal processing using signal wizard 2.55

Digital signal processing (DSP), as one of the most significant and rapidly developing technologies in the world, plays an important role in all the areas related to signal processing and digital control. It is no exaggeration to say that, without DSP, a great part of information technologies´ realization wouldn´t be possible. By using Signal Wizard 2.55 and other test and analytical techniques, we have performed and analysed three tasks in this paper, which are off-line filtering, real-time filtering and analysis of infinite impulse response respectively. By completion of these four parts, a number of features corresponding to DSP and the performance of these testing techniques will be obtained. Plus, numerous important questions raised during the experimental process and related to DSP can eventually be answered.