Technique minimizes the effects of dropouts on telemetry records
T. O. Anderson, William J. Hurd · NASA Technical Reports Server (NASA) · 1972
Recorder deficiencies are minimized by using two-channel system to prepare two tapes, each having noise, wow and flutter, and dropout characteristics of channel on which it was made. Processing tapes by computer and combining signals from two channels produce single tape free of dropouts caused by recording process.