Accession Number:

AD0857394

Title:

Multiplexing of Delta Modulated Signals. Volume 2.

Descriptive Note:

Final rept.,

Corporate Author:

WEAPONS RESEARCH ESTABLISHMENT SALISBURY (AUSTRALIA)

Personal Author(s):

• Brooks, D. G.
• Whitehead, M. A.
• Flavel, W. L.
• Cearns, R. G.
• Wollaston, Terence C.

Report Date:

1968-10-01

Pagination or Media Count:

220.0

Abstract:

This Appendix details the methods which were adopted to obtain the data required to make an evaluation of various models incorporating techniques for multiplexing delta modulated signals. It includes descriptions of both subjective and objective tests. The former tests include speech intelligibility, voice quality and speaker recognition tests. The latter involve data transmission, dynamic range and other electrical tests. Many of the tests were carried out on both single channel modulator-demodulators and multiplexer models to provide a measure of the performance of the multiplexing techniques.

Descriptors:

• *COMMUNICATION AND RADIO SYSTEMS
• *MODULATORS
• *DEMODULATORS
• *DATA TRANSMISSION SYSTEMS
• *DELTA MODULATION
• TACTICAL WARFARE
• CODING
• DECODING
• TEST EQUIPMENT
• VOICE COMMUNICATIONS
• SPEECH RECOGNITION
• SYNCHRONIZATION(ELECTRONICS)
• INTELLIGIBILITY
• QUALITY CONTROL
• TEST METHODS
• MULTIPLEXING
• DISTORTION
• DEGRADATION
• ELECTROMAGNETIC COMPATIBILITY
• AUSTRALIA
• GLOBAL COMMUNICATIONS
• SECURE COMMUNICATIONS

Subject Categories:

• Military Operations, Strategy and Tactics
• Electricity and Magnetism
• Voice Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE