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Spectral analysis program. Volume 1: User's guideThe spectral analysis program (SAP) was developed to provide the Manned Spacecraft Center with the capability of computing the power spectrum of a phase or frequency modulated high frequency carrier wave. Previous power spectrum computational techniques were restricted to relatively simple modulating signals because of excessive computational time, even on a high speed digital computer. The present technique uses the recently developed extended fast Fourier transform and represents a generalized approach for simple and complex modulating signals. The present technique is especially convenient for implementation of a variety of low-pass filters for the modulating signal and bandpass filters for the modulated signal.
Document ID
19730017418
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Hayden, W. L. (TRW Systems Group Redondo Beach, CA, United States)
Date Acquired
September 2, 2013
Publication Date
June 12, 1972
Subject Category
Communications
Report/Patent Number
TRW-20817-H010-R0-00-VOL-1
NASA-CR-128984
Accession Number
73N26145
Funding Number(s)
CONTRACT_GRANT: NAS9-11977
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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