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Mihai V. MICEA Real-Time Data Acquisition and DSP Systems 1 Introduction Today society has a powerful ally – the digital computer. We are surrounded and assisted in our everyday activities by this reliable and efficient friend, even when we do not realize it immediately. Currently, digital processing systems support almost every human activity, as extremely efficient, fast and precise command and control tools. From bank transactions and modern digital telecommunication services to air and ground traffic control, or from quick and easy office management to the advanced technology of satellites, digital control systems can be found as key components. Moreover, digital technologies have recently approached one of the most abstract and "human" field of activity: the art production. This unprecedented development of digital systems and technology in our present society represents the major premise of its accelerated progress. Given the huge number of applications involving digital processing systems, new types of problems emerged, including: y interfacing the digital systems to the application environment y developing efficient algorithms for data and signal processing y embedding digital control and processing units into products y providing real-time system operating capabilities y designing effective data communication architectures and protocols To address and solve such design and engineering challenges, new research and development fields appeared: 1. Data Acquisition and Conditioning Systems 2. Digital Signal Processing 3. Embedded and Real-Time Systems 4. Digital Communication Architectures and Protocols All major companies and laboratories involved in research and production of digital equipment consider these fields as top priority and allocate a large amount of highly qualified specialists and funding to approach the design and engineering issues. Companies like Motorola, Alcatel, Siemens, Texas Instruments, Analog Devices, Hewlett-Packard, Sun Microsystems, Intel, Microsoft, National Instruments, Matrox, Tektronix, Math Works, Signalogic, Pentek and many others, prove the importance of these fields. On the other hand, the research and development efforts on these issues are initiated and supported by the vast majority of universities and academic research laboratories around the globe. POLITEHNICA University of Timisoara is a good example, with its Digital Signal Processing Laboratories – DSPLabs, which has operated for over 6 years in design, analysis and engineering of data acquisition and conditioning systems, digital signal processing, digital image processing and embedded systems. Introduction 1