RELIABILITY OF MAGNETIC TAPE MEMORIES,
Abstract
By lumping together noise associated with magnetic tape quality, inherent noise of signal processing circuits, and noise caused by mechanical sources such as flutter and tape-head channel crosstalk, the author expresses the reliability of digital tape readers as a function of probabilities of misreading 0 and 1. Assuming that noise follows a normal distribution pattern, the author shows that the probability of tape reader failure is a function of discriminator-threshold-level discerning between 0 and 1, and that this probability has a minimum and maximum value. A probability of failure for reading a random code is derived. These results are used to evaluate the reliability of the BESM-2M computer tape memory system. A method for finding the actual distribution of signal and noise amplitudes in this system is presented.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 04, 1968
- Accession Number
- AD0679508
Entities
People
- A. A. Kilna
Organizations
- National Air and Space Intelligence Center