Accession Number:

ADA031207

Title:

A Bit Timing Extraction Technique.

Descriptive Note:

Final technical rept. Aug 75-Feb 76,

Corporate Author:

AIR FORCE AVIONICS LAB WRIGHT-PATTERSON AFB OHIO

Personal Author(s):

Report Date:

1976-06-01

Pagination or Media Count:

67.0

Abstract:

This technical report contains a description of a bit-timing extraction technique which can be used to derive bit-timing a clock from a UHF satellite digital communications channel disturbed by the effects of ionospheric scintillation. The bit-timing extraction technique is described as a part of a modulatordemodulator which uses a binary FSK modulator and a post-detection demodulator. In addition a convolutional encoder with a feedback decoder are an integral part of the modulatordemodulator. The functioning of the encoder-decoder requires an accurate clock even during signal fading periods of up to five seconds. The bit-timing extraction technique was conceived to fulfill this need. Author

Subject Categories:

  • Non-Radio Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE