Accession Number : ADA303262

Title :   Study of the Crosscorrelation Properties of the 8-Stage Maximal Length Sequences for the Testing of a Time-Integrating Correlator.

Descriptive Note : Technical note,

Corporate Author : DEFENCE RESEARCH ESTABLISHMENT OTTAWA (ONTARIO)

Personal Author(s) : Faulkner, S. ; Brousseau, N.

PDF Url : ADA303262

Report Date : OCT 1995

Pagination or Media Count : 42

Abstract : The purpose of this DREO Technical Note is to present experimental and theoretical results on the properties of the cross correlations of maximum length direct sequences (m-sequences). The code correlation families and the relationship between full-period and partial-period correlations are described. Results from the software developed to study the cross-correlation properties of the 8-stage m-sequences, denoted R8's, as well as, results obtained from the optical correlator and the theoretical studies are presented. The software developed to analyze the cross-correlation functions was also suitable for the study of partial-period correlation functions and the effects of phase shifts on partial-period correlation functions. Properties of partial-period correlation functions are also analyzed and a generalization to - longer m-sequences is presented. The results from the optical correlator demonstrate that it is possible to visually identify the m-sequences family associated with the cross-correlations for those which have the strongest features. (AN)

Descriptors :   *OPTICAL CORRELATORS, *CROSS CORRELATION, SIGNAL PROCESSING, SOFTWARE ENGINEERING, PEAK VALUES, TIME DEPENDENCE, SIGNAL TO NOISE RATIO, CANADA, AUTOCORRELATION, INPUT OUTPUT PROCESSING, CHIPS(ELECTRONICS), SEQUENCES, OPTICAL PROCESSING, ACOUSTOOPTICS, PERIODIC VARIATIONS, BRAGG SCATTERING, PHASE SHIFT, LARGE SCALE INTEGRATION, SPREAD SPECTRUM.

Subject Categories : Electrooptical and Optoelectronic Devices

Distribution Statement : APPROVED FOR PUBLIC RELEASE