TIMING CORRELATION IN TELEMETRY RECORDING AND PROCESSING SYSTEMS
International Telemetering Conference Proceedings / October 09-11, 1973 / Sheraton Inn Northeast, Washington, D.C. === The Space and Missile Test Center (SAMTEC) has conducted tests to correlate independent data stream to within ±10 microseconds. System timing error measurements have been made to...
| Main Authors: | , |
|---|---|
| Other Authors: | |
| Language: | en_US |
| Published: |
International Foundation for Telemetering
1973
|
| Online Access: | http://hdl.handle.net/10150/605423 http://arizona.openrepository.com/arizona/handle/10150/605423 |
| Summary: | International Telemetering Conference Proceedings / October 09-11, 1973 / Sheraton Inn Northeast, Washington, D.C. === The Space and Missile Test Center (SAMTEC) has conducted tests to
correlate independent data stream to within ±10 microseconds. System timing error
measurements have been made to determine RF system delays; the delays associated with
wideband analog tape recorders in the recording, dubbing and reproducing processes; and
uncertainties associated with processed data. Comparison of the time delays between
predetection PCM data and post-detection PCM data are made. Several methods of
recording IRIG time code formats A and B are evaluated for best resolution. Timing error
versus tape recorder head azimuth is plotted. Tape recorder phase delay effects on time
code formats and on PCM data are given. The time bias between the time tag and the
computer processed data is presented. Sources of timing errors and the calibration and
operating techniques available to minimize these errors are discussed. A special time tag
technique (Ref 1) has been used in the past to determine the cumulative timing bias for all
sources. This investigation is believed to be the first attempt to identify the individual
contributions to the cumulative bias. |
|---|