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Related Experiment Videos

A fast 80X86 assembly language module to low-pass filter digital data.

H Núñez-Durán1

  • 1Departamento de Ciencias Fisiólogicas, Universidad Autónoma de Puebla, México.

International Journal of Bio-Medical Computing
|October 1, 1991
PubMed
Summary

This assembly language procedure efficiently low-pass filters digital data arrays for real-time applications. It processes 512 data points in 5 ms, ideal for physiological pulse recording.

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Area of Science:

  • Computer Science
  • Signal Processing

Background:

  • Digital signal processing often requires efficient filtering algorithms.
  • Assembly language offers speed advantages for computationally intensive tasks.

Purpose of the Study:

  • To develop and present a high-speed, low-pass digital filter implemented in assembly language.
  • To provide a callable procedure for integration into high-level language programs.

Main Methods:

  • Implementation of a well-known low-pass filter algorithm in assembly language.
  • Optimization for speed on a 16 MHz 386 microcomputer, processing 512 data points in 5 ms.
  • Capability to handle up to 32 kb of binary data (12-16 bits wide).

Main Results:

  • Achieved efficient filtering of digital data arrays.

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  • Demonstrated excellent time-domain response suitable for physiological data.
  • Provided user control over cutoff frequency and filtering passes.

    • Conclusions:

    • The assembly language low-pass filter is a fast and effective solution for digital signal processing.
    • Its performance and features make it highly suitable for real-time physiological data analysis.