Accession Number:

AD0625197

Title:

DEVICE FOR THE ANALYSIS OF THE INSTANTANEOUS SPECTRUM OF A VOICE SIGNAL IN HARMONIC DECODERS,

Descriptive Note:

Corporate Author:

FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s):

Report Date:

1965-10-21

Pagination or Media Count:

6.0

Abstract:

The proposed device is distinguished from the known ones by the fact that in it there is used an LC-line of delay which is open at the end and matched in the beginning, is of the low-frequency type, has branches, and is connected with a conversion system. The latter consists of linear detectors and summators arranged ahead of and behind the linear detectors in each branch of the delay line and terminated in low-frequency filters. This difference supposedly assures the obtaining of voltages proportional to the coefficients of the breaking down of the instantaneous spectrum into Fouriers cosine series.

Subject Categories:

  • Cybernetics
  • Acoustics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE