SYNCHRONIZATION METHODS FOR PCM TELEMETRY
Abstract
A specially coded synchronization pattern is required for proper identification of repetitive frames of pulse-code-modulated (PCM) sequences of binary bits. Study has shown that, with an assumed set of criteria, there are many favorable sync patterns. An efficient pattern is described on the basis of assumed criteria and hardware implementation at NOLC. This pattern is compared with sync patterns proposed by others. A recommendation is made that a maximum frame sync pattern of 33 bits be specified at present and the choice of optimal patterns be determined by future study. Part I summarizes the conclusions reached in the sync study at NOLC; Part II presents a detailed mathematical analysis, experimental results, and extensive diagrams. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1962
- Accession Number
- AD0286835