Accession Number:

AD0670905

Title:

A METHOD OF CORRECTING AMPLITUDE SIGNALS IN MULTICHANNEL TELEMETRY (METOD KORREKSII AMPLITUDNYKH SIGNALOV V MNOGOKANALNOI TELEMETRII),

Personal Author(s):

Corporate Author:

FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Report Date:

1967-10-25

Abstract:

The use of amplitude modulation in telemetry is limited by large errors due to communication-channel variations and low noise immunity. To improve the system, the following method of correcting signal is suggested. In addition to several harmonic components of the frequencies modulated by desirable signals, an a-c voltage of a stable amplitude and frequency f is also transmitted over the same channel. Individual harmonic components are isolated by band-pass filters and detected in the receiver. Corrections are introduced into the gain of the information-carrying frequency-isolating filters in accordance with the attenuation of the correcting-signal amplitude. Due to the fact that the attenuation depends on the carrier frequency, the correction factor must be determined from a suitable function. Allowance for noise is also necessary. Author

Supplementary Note:

Unedited rough draft trans. of Energeticheskii Institut, Moscow. Trudy (USSR) n52 p193-7 1963.

Pages:

0009

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File Size:

0.00MB

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