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The DELPHI System: A System Level Tool For Integrated Design Of Real-Time Signal Processors

We are developing an expert system to facilitate the CAD of sophisticated and complex chips for real-time non-linear signal processing. The software is called DELPHI which is an acronym for DEsign Laboratory for Processing Hidden Information. The system combines an AI engine, symbolic algebra, and multiprocessor numerical schemes. Sophisticated reasoning, mathematical, and computational tools are provided in a form suitable for immediate use by systems engineers. One of the major advantages of DELPHI is its ability to interact symbolically with the user. The architecture of the DELPHI system is shown in Figure 1. The current architecture can be classified as a shallow coupled system since the knowledge-based system has little knowledge of numeric routines. The numeric routines, which are treated as 'black boxes', are managed by the system to solve the given problem and interpret the results. The system can be used as: (a) a tool for integrated system design, (b) a tool for integration of symbolic and numeric computing, and (c) an advanced teaching aid.