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Related Experiment Videos

A wide-band high-resolution spectrum analyzer.

M P Quirk1, M F Garyantes, H C Wilck

  • 1Jet Propulsion Laboratory, California Institute of Technology, Pasadena, USA.

IEEE Transactions on Acoustics, Speech, and Signal Processing
|December 1, 1988
PubMed
Summary
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A new digital spectrum analyzer is being developed for the Search for Extraterrestrial Intelligence program. This powerful tool offers real-time signal analysis and detection capabilities for deep space network applications.

Area of Science:

  • Electrical Engineering
  • Astrophysics
  • Signal Processing

Background:

  • The Search for Extraterrestrial Intelligence (SETI) program requires advanced signal processing capabilities for sky surveys.
  • The Deep Space Network (DSN) needs efficient tools for real-time signal analysis.

Purpose of the Study:

  • To describe a novel two-million-channel, 40-MHz-bandwidth digital spectrum analyzer.
  • To present a prototype processor for SETI sky surveys and DSN applications.

Main Methods:

  • Digitizing analog input signals.
  • Performing a 2^21-point Discrete Fourier Transform (DFT).
  • Accumulating output power and normalizing for frequency-dependent gain.
  • Automating signal detection algorithms.

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Main Results:

  • Development of a flexible, high-channel-count digital spectrum analyzer.
  • Implementation of frequency-domain processing for real-time analysis.
  • Demonstration of automated signal detection capabilities.

Conclusions:

  • The developed spectrum analyzer is a powerful tool for real-time signal analysis and detection.
  • Its configuration flexibility makes it suitable for diverse applications in radio astronomy and deep space communication.