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Related Experiment Videos

VLSI processors for signal detection in SETI.

J F Duluk1, I R Linscott, A M Peterson

  • 1Department of Electrical Engineering, Stanford University, CA 94305-4055.

Acta Astronautica
|January 1, 1989
PubMed
Summary

This study details custom VLSI chips designed to advance the Search for Extraterrestrial Intelligence (SETI). These chips aim to reduce the cost and size of SETI signal detection machines for discovering alien intelligence.

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Area of Science:

  • Astronomy and Astrophysics
  • Computer Engineering
  • Signal Processing

Background:

  • The Search for Extraterrestrial Intelligence (SETI) aims to detect artificial signals from distant stars.
  • Current SETI signal detection methods, including spectral analysis and pattern detection, are computationally intensive.
  • The development of specialized computer architectures is crucial for efficient SETI signal processing.

Purpose of the Study:

  • To reduce the size and cost of SETI signal detection hardware.
  • To introduce custom Very Large Scale Integration (VLSI) chips for enhanced SETI data processing.

Main Methods:

  • Development of two custom VLSI chips: the SETI DSP Engine and a novel Content-Addressable Memory.
  • The SETI DSP Engine is designed for high-speed computation of Discrete Fourier Transforms (DFTs) for spectral analysis.
Keywords:
NASA Discipline ExobiologyNASA Discipline Number 52-60NASA Program ExobiologyNon-NASA Center

Related Experiment Videos

  • The Content-Addressable Memory forms the core of an associative processor for narrow-band signal pattern detection.

    • Main Results:

    • The SETI DSP Engine features a high-speed arithmetic processor with specific components like adders, a multiplier-accumulator, and four-port memories.
    • A new type of Content-Addressable Memory is developed for efficient pattern detection in associative processors.
    • Both custom chips integrate innovative circuit designs and architectural features.

    Conclusions:

    • The custom VLSI chips represent a significant advancement in developing more compact and cost-effective SETI signal detection systems.
    • These specialized processors are expected to improve the efficiency of both spectral analysis and pattern detection for SETI applications.
    • The innovative designs pave the way for future enhancements in the search for extraterrestrial intelligence.