Digital Data Transmission in a Pulse Amplitude Modulation (PAM) Communication System

reportActive / Technical Report | Accession Number: ADB006504 | Open PDF

Abstract:

This report presents the results of an experimental evaluation of the effectiveness of digital data transmission in a pulse-amplitude modulation PAM communication system. Some sources of PAM system errors are discussed to clarify the nature of the problem. A PAM communication system was simulated and equipment was developed to obtain experimental results indicative of PAMs effectiveness in transmission of digital data. The results consist of word channel, and bit error probability curves for different numbers of digital bits per PAM channel. The digital bits are converted to analog voltage levels selected PAM channels. After decommutation, the digital bits are recovered from the analog voltage levels. The data indicates that the number of bits per channel should be 4 or less with 4 being marginal depending upon the digital data quality requirements. The error probability curves can be used to determine whether or not a specific PAM communication system can telemeter digital data within given constraints. In addition, the results provide guidelines for the implementation of digital data in a PAM system.

Author(s):
King, D. A.
Author Organization(s):
PACIFIC MISSILE TEST CENTER POINT MUGU CA
Descriptive Note:
Technical publication
Supplementary Note:
DOI: 10.21236/ADB006504
Pagination:
0046

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
PMTC-TP-75-46
Project Number(s):
A535-5352/054-D/A5W47-410-030
Monitor Series:
PMTC
 Subject Terms
Joint Capability Areas:
JCA_6.1.3_Switching and Routing; JCA_6.1.1_Wired Transmission; JCA_6_Net Centric; JCA_6.1_Information Transport; JCA_5_Command and Control; JCA_3.2_Engagement; JCA_3_Force Application; JCA_3.2.1_Kinetic Means; JCA_1.2.7_Experimentation; JCA_5.4_Decide; JCA_5.2_Understand; JCA_4.5.4_Requirements Definition; JCA_4.5_Operational Contract Support; JCA_1.3_Human Capital Management; JCA_1.4.2_Health Service Delivery; JCA_1.4_Force Support; JCA_1_Force Support
Modernization Areas:
Microelectronics; Directed Energy
Communities of Interest:
Weapons Technologies
Descriptor(s):
*DATA TRANSMISSION SYSTEMS, *PULSE AMPLITUDE MODULATION, *TELEMETER SYSTEMS, DIGITAL SYSTEMS, ERRORS, INFORMATION THEORY
Field(s)/Group(s):
Cybernetics, Telemetry, Non-Radio Communications
Report Date:
1975 Aug 14