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Hardware implementation. DSP: ADSP-2181, 16 bit, fixed point, 40MHz D/A: 300kHz, 14 bit PC: development environment: LabVIEW. Solutions using fixed - point arithmetic. }. Need to optimise the coefficients of the filters to exploit the available numerical range. Limited precision

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hardware implementation
Hardware implementation
  • DSP: ADSP-2181, 16 bit, fixed point, 40MHz
  • D/A: 300kHz, 14 bit
  • PC: development environment: LabVIEW
solutions using fixed point arithmetic
Solutions using fixed-point arithmetic

}

Need to optimise the coefficients of the filters to exploit the available numerical range

  • Limited precision
  • Saturation
algorithm
Algorithm

Interrupt

Random number

Filters

D/A conversion

Return

features
Features
  • Flexible 1/f α noise generator
  • Digital noise generation (DSP)
  • Analog output (D/A conversion)
  • Stand-alone or host computer controlled
  • High accuracy
  • Easy upgrade in speed, accuracy