On the design of a postprocessor for a search for extraterrestrial intelligence /SETI/ systemThe design of an on-line postprocessor for a search for extraterrestrial intelligence (SETI) system is described. Signal processing tasks of the postprocessor include: (1) analysis of power level, phase coherence, and state of polarization of single-channel signals in a search for significant signals; (2) grouping or aggregation of adjacent channel data, time averaging of data; and (3) the detection of drifting and modulated signals. Control functions include multichannel spectrum analyzer frequency and clock control, system calibration and selfdiagnostic, control of data flow to and from short-term and long-term (archival) memories, and operation of detection subsystems, such as a visual display and a tunable receiver.
Document ID
19800035725
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Healy, T. J. (Santa Clara, University Santa Clara, Calif., United States)
Seeger, C. L. (NASA Ames Research Center SETI Program Office, Moffett Field; San Francisco State University, San Francisco, Calif., United States)
Stull, M. A. (NASA Ames Research Center SETI Program Office, Moffett Field, Calif., United States)