Accession Number:

ADA071767

Title:

Mixed Base Modulation.

Descriptive Note:

Technical rept.,

Corporate Author:

RADIATION INC MELBOURNE FLA SYSTEMS DIV

Personal Author(s):

• McRae,D. D.

Report Date:

1970-05-20

Pagination or Media Count:

89.0

Abstract:

This report presents the performance of a new modulation technique which has been called mixed-base modulation MBM. This technique provides significant performance advantages over other common modulation techniques for applications where both power and bandwidth are limited. Its performance for bandspreading factors of two to five relative to single-sideband is reasonably close to the ultimate Shannon bounds. Most available techniques are very poor in this region. The viewpoint which allowed synthesis of this technique will be given before the basic approach and its performance are discussed. A section comparing the theoretical performance of MBM and that of other common techniques is followed by a discussion of some of the practical considerations. Author

Descriptors:

• *SIGNAL PROCESSING
• *INFORMATION THEORY
• *MODULATION
• SIGNAL TO NOISE RATIO
• WHITE NOISE
• RECEIVERS
• BROADBAND
• SAMPLING
• TRANSMITTERS
• MATCHED FILTERS
• SINGLE SIDEBAND COMMUNICATIONS

Subject Categories:

• Cybernetics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE