Accession Number : ADA112114

Title :   PN Matched Filters in Adaptive Arrays.

Descriptive Note : Final rept.,

Corporate Author : MICHIGAN UNIV ANN ARBOR COOLEY ELECTRONICS LAB

Personal Author(s) : Ristenbatt,M P ; Birdsall,T G ; Holland-Moritz,E

PDF Url : ADA112114

Report Date : Sep 1981

Pagination or Media Count : 84

Abstract : This report describes and evaluates a new way to combine pseudo-noise (PN) spread spectrum and adaptive (antenna) arrays, consisting of multiple matched filters followed by sample matrix inversion (SMI) array processing. The evaluation of this technique was done by using a 4-element linear array and: (1) straightforward matrix calculations; (2) a computer computation of output signal-to-noise ratio; SNRO, versus angle when the theoretically correct noise covariance matrix was used; and (3) a computer simulation/demonstration that estimated the noise covariance matrix from computer-generated interference samples. (Author)

Descriptors :   *Antenna arrays, *Adaptive systems, *Antijamming, Spread spectrum, Pseudo noise systems, Radiofrequency interference, Matched filters, Weighting functions, Matrices(Mathematics), Signal to noise ratio, Pulse compression, Covariance, Signal processing, Modems, Synchronization(Electronics), Nulls(Amplitude)

Subject Categories : Radio Countermeasures

Distribution Statement : APPROVED FOR PUBLIC RELEASE