Accession Number:

AD0744928

Title:

Synchronization of Binary Data Systems.

Descriptive Note:

Technical memo.,

Corporate Author:

JOHNS HOPKINS UNIV SILVER SPRING MD APPLIED PHYSICS LAB

Personal Author(s):

• Schonhoff,T. A.

Report Date:

1972-06-01

Pagination or Media Count:

37.0

Abstract:

The report is a tutorial comparison of various methods commonly used to synchronize data of a digital nature. Only synchronizing sequences are considered i.e., self-synchronizing codes are not considered, and specific examples using pseudo-noise PN and Barker codes are presented. A derivation of the number of correctable or synchronizable errors as a function of autocorrelation functions is given. Other results include probabilities of correct synchronization and of false synchronization using different methods of data transmission. Noise considerations are included. In keeping with the tutorial nature of the report, a knowledge of basic communication and probability theory is all that should be required for an understanding. Author

Descriptors:

• *CODING
• *PULSE COMMUNICATIONS
• DATA TRANSMISSION SYSTEMS
• SYNCHRONIZATION(ELECTRONICS)
• STATISTICAL ANALYSIS
• PROBABILITY DENSITY FUNCTIONS
• ERRORS
• WHITE NOISE
• SIGNAL TO NOISE RATIO
• CURVE FITTING

Subject Categories:

• Cybernetics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE