Blind signal separation using spreading codes

Details Blind signal separation using spreading codes Blind signal separation using spreading codes

2006-10-03

2006-10-03

Tarcza, Thomas H. (Department: 3662)

Communications: directive radio wave systems and devices (e.g.,

Directive

Utilizing correlation techniques

C342S377000, C702S190000

Reexamination Certificate

active

07116271

ABSTRACT:
A communications device for separating source signals provided by M signal sources includes an antenna array comprising N antenna elements for receiving at least N different summations of the M source signals. A code despreader is connected to the N antenna elements for decoding the at least N different summations of the M source signals. Each one of the N different summations includes k codes for providing k different summations of the M source signals associated therewith. A blind signal separation processor forms a mixing matrix comprising at least kN different summations of the M source signals, and separates desired source signals from the mixing matrix. The mixing matrix has a rank equal up to kN.

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patent: 2277252 (2000-09-01), None
D.W.E. Schobben et al., Transparent communication, Proc. Signal Processing Symposium SPS 98, a two-day workshop organized by the IEEE Benelux Signal Processing Chapter, p. 171-174, 1998.
H. Mathis, Nonlinear Functions for Blind Separation and Equalization, dissertation submitted to the□□Swiss Federal Institute of Technology, Zürich for the degree of Doctor of Technical Sciences, Hartung-Gorre Verlag, Konstanz, p. 58-63, 220-223, Nov. 2001.

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