Accession Number:

ADA000670

Title:

Convolutional Decoder Performance on VHF and Troposcatter Channels.

Descriptive Note:

Final rept.,

Corporate Author:

ARMY ELECTRONICS COMMAND FORT MONMOUTH N J

Personal Author(s):

• Ranieri,Gregory C.
• Quigley,John E.

Report Date:

1974-09-01

Pagination or Media Count:

97.0

Abstract:

Convolutional codes are quite powerful, easily implemented error correcting codes. Decoders for these codes can be probabilistic or deterministic. The primary decoders investigated were the Massey diffuse decoder fixed, deterministic, the adaptive Gallager decoder adaptive, deterministic and the Viterbi decoder Probabilistic. A limited number of simulations of these decoders were conducted using troposcatter and VHF channel error data. Comparative results and conclusions are discussed. Author

Descriptors:

• COMPUTER PROGRAMS
• ALGORITHMS
• DEMODULATORS
• TACTICAL COMMUNICATIONS
• ERROR CORRECTION CODES
• VERY HIGH FREQUENCY
• CODERS
• DECODING
• TROPOSPHERIC SCATTER COMMUNICATIONS

Subject Categories:

• Radio Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE