Accession Number:

ADA026220

Title:

Study of Multi-State PN Sequences and their Application to Communication Systems.

Descriptive Note:

Progress rept. no. 5, 1 Jan-15 Feb 76,

Corporate Author:

ROCKWELL INTERNATIONAL NEWPORT BEACH CALIF COLLINS RADIO GROUP

Personal Author(s):

• Gold,Robert

Report Date:

1976-02-18

Pagination or Media Count:

32.0

Abstract:

Substantial progress was made during the current reporting period which was devoted to the following areas Further correlation properties of four-state sequences, implementation of four-state sequences in systems using correlation detectors, and spectral properties of four-state sequences. The cross-correlation function of any two maximal four-state sequences was determined in terms of the cross-correlation function of the binary sequences used to represent them. Two general formulas were obtained, each of which applies depending on whether the four-state sequences being correlated are of the same or opposite category. It was shown that the cross-correlation function of two maximal four-state sequences of opposite category is real valued. The mean square value of the cross-correlation function of any two maximal four-state sequences has been determined.

Descriptors:

• *INFORMATION THEORY
• COMMUNICATION EQUIPMENT
• POWER SPECTRA
• CODING
• CORRELATION TECHNIQUES
• FUNCTIONS(MATHEMATICS)
• SEQUENCES(MATHEMATICS)
• CROSS CORRELATION
• BINARY NOTATION

Subject Categories:

• Cybernetics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE