A DISCUSSION OF SPREAD SPECTRUM COMPOSITE CODES,

Braverman, David J.

A DISCUSSION OF SPREAD SPECTRUM COMPOSITE CODES,

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Abstract:

This report considers a code synchronization technique known as composite code synchronization in which individual element codes of the composite can be synchronized individually. The requirement of maximum detectability of the elements and a symmetric combining function imply the use of a majority Boolean function in the formation of the composite code. The detectability of the elements decreases as the square root of the number of elements. Optimum strategies for communication and jamming imply the use of the majority Boolean function of the elements which are in synchronism. Time averages are computed on an ensemble assumption by using a truth table in which each entry is equally probable. Author

Author(s):

Braverman, David J.

Author Organization(s):

AEROSPACE CORP EL SEGUNDO CALIF

Pagination:

0044

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:

Approved For Public Release

RECORD

Collection: TR

Identifying Numbers

Report Number(s):

TDR269 4111 9, TR3

Contract/Grant Number(s):

AF04 695 269

Monitor Series:

TDR63 306

Subject Terms

Joint Capability Areas:

JCA_6_Net Centric

Communities of Interest:

No COI(s) Identified

Descriptor(s):

*COMMUNICATION AND RADIO SYSTEMS, CODING, RADIO TRANSMITTERS, RADIO RECEIVERS, SYNCHRONIZATION(ELECTRONICS), SEQUENCES(MATHEMATICS), VULNERABILITY, DETECTION, FUNCTIONS(MATHEMATICS), ELECTRONIC COUNTERMEASURES, TIME, NOISE(RADIO)

Report Date:

1963 Dec 01