TIME AND PHASE JITTER AS RELATED TO MAGNETIC TAPE REPRODUCTION,
Abstract
An important characteristic of a magnetic tape recorder, when used to record digital informa tion, is its ability to reprodue a signal with a minimum of short-term time error (jitter). Consideration of this aspect is of special in terest in real time recording. For example, the capacity of the ''rotating buffers'' in the quantized radar video recorder and the Bell A-1 recorder was directly determined by the amplitude of the jitter in the interval of interest. Most tape machine manufacturers indicate the tape speed stability only in terms of percent ''Wow and Flutter,'' an audio anachronism. An expres sion is developed here which is helpful in show ing the relationship between Wow and Flutter and time jitter. The expression indicates that the flutter components with periods of the order of the interval of interest, T, contribute more to the jitter than the shorter period flutter. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1963
- Accession Number
- AD0418206
Entities
People
- J.w. Valentine
Organizations
- MITRE Corporation