Analysis of SETI data collected in the parasitic mode
Abstract
A system for performing SETI observations continuously as part of non-SETI observations at a radio observatory is presented, and the analysis of results obtained by the parasitic system is discussed. The system, designated SERENDIP, is a real-time microprocessor-controlled spectrum analyzer with algorithms for performing statistical operations and recording those spectra with characteristics presumed to be typical of intelligent rather than astrophysical origin. Programs also exist for the post-acquisition analysis of signal autocorrelation, power spectra, time behavior and positional coordinates, and for a generalized cluster analysis to detect clusters of signal detections. In a recent run of 35 days, the SERENDIP system detected 4000 narrowband spectra exceeding a preset threshold, of which 98% were determined to be of instrumental origin. The remaining class of detections is also believed to be instrumental, although not as well organized as the first signals, and means are currently being sought for eliminating them.
- Publication:
-
Tokyo International Astronautical Federation Congress
- Pub Date:
- September 1980
- Bibcode:
- 1980toky.iafcS....B
- Keywords:
-
- Astronomical Observatories;
- Data Acquisition;
- Radio Astronomy;
- Radio Spectroscopy;
- Spectrum Analysis;
- Autocorrelation;
- Computer Techniques;
- Electronic Control;
- Microprocessors;
- Real Time Operation;
- Signal Analyzers;
- Signal Processing;
- Statistical Analysis;
- Space Sciences (General)