Fixed - Point Optimization Utilityfor C and C + + Based Digitalsignal Processing

نویسندگان

  • Seehyun Kim
  • Ki-Il Kum
  • Wonyong Sung
چکیده

Two xed-point optimization utility programs, the range estimator and the xed-point simulator, are developed for scaling and wordlength determination of digital signal processing algorithms written in C or C++ language. By exploiting the operator overloading characteristics of C++ language, range estimation and xed-point simulation can be conducted just by modifying the variable declaration of the original oating-point digital signal processing program. Since this utility evaluates the range and the xed-point performance by simulation, not by analytical methods, it is easily applicable to nearly all type of digital signal processing algorithms including non-linear and time-varying systems. In addition, this utility software can be used for comparing the xed-point characteristics of diierent implementation architectures.

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تاریخ انتشار 1996