Jam-Resistant Speech Encoding.

reportActive / Technical Report | Accession Number: ADA134707 | Open PDF

Abstract:

This report describes techniques that provide increased jam resistance for digitized speech. Methods for increasing the jam resistance of pulse code modulated data are analyzed and evaluated in listener tests. Special emphasis is placed on new voice encoding approaches that take advantage of a spread spectrum system with a variable or multiple-data-ratevariable or multiple-AJ capability. Methods for matching a source to a channel in a jamming environment are investigated. Several techniques that provide about a 4 dB increase in jam resistance have been identified. Author

Author(s):
Poole, M. A. ; Rifkin, R.
Author Organization(s):
MITRE CORP BEDFORD MA
Descriptive Note:
Phase rept. Oct 81-Sep 82,
Pagination:
0066

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
MTR-8827, RADC-TR-83-89
Contract/Grant Number(s):
F19628-82-C-0001
Task Number(s):
72
Project Number(s):
MOIE
Monitor Series:
TR-83-89
 Subject Terms
Joint Capability Areas:
JCA_3.2_Engagement; JCA_3_Force Application; JCA_3.2.2_Non-Kinetic Means; JCA_6_Net Centric; JCA_6.1_Information Transport; JCA_3.2.1_Kinetic Means; JCA_4.6_Engineering; JCA_4.6.1_General Engineering; JCA_6.3.3_Spectrum Management; JCA_5_Command and Control; JCA_5.3_Planning; JCA_6.3_Net Management; JCA_1_Force Support; JCA_1.2_Force Preparation; JCA_1.2.6_Concepts; JCA_1.2.5_Lessons Learned
Modernization Areas:
Fully Networked C3
Communities of Interest:
Energy and Power Technologies
Descriptor(s):
*Antijamming, *Vocoders, *Voice communications, *Coding, Pulse code modulation, Spread spectrum, Jamming, Speech, Environments
Field(s)/Group(s):
Countermeasures, Voice Communications
Keyword(s):
Weighting, Speech antijamming, WURADCMOIE7210, PE62702F
Report Date:
1983 Jun 01