Feedback phase-shift compensation for adaptive interference cancellers

Authors
Citation
Ew. Justh et Fj. Kub, Feedback phase-shift compensation for adaptive interference cancellers, ELECTR LETT, 36(17), 2000, pp. 1503-1505
Citations number
6
Categorie Soggetti
Eletrical & Eletronics Engineeing
Journal title
ELECTRONICS LETTERS
ISSN journal
00135194 → ACNP
Volume
36
Issue
17
Year of publication
2000
Pages
1503 - 1505
Database
ISI
SICI code
0013-5194(20000817)36:17<1503:FPCFAI>2.0.ZU;2-W
Abstract
An algorithm typically used for adaptive co-site interference cancellers (f or frequency-hopping spread-spectrum communications systems) is the least-m ean-square error (LMS) algorithm. As adaptive cancellation moves into L-ban d and S-band, feedback system stability becomes a critical issue for co-sit e interference cancellers using the LMS algorithm. The authors present a te chnique for compensating the high-frequency feedback path phase shifts lead ing to instability with an additional complex weight multiplication at base band. Simulation and experimental results confirm the effectiveness of the technique.