Digital precompensation of imperfections in quadrature modulators.

Digital precompensation of imperfections in quadrature modulators.

Residual carrier, balance, and quadrature error imperfections that are normally present in phase/quadrature modulators limit the use of direct modulation techniques in some applications. The classical precompensation techniques are revised and an adaptive solution proposed that improves performance...

Disgrifiad llawn

Manylion Llyfryddiaeth
Cyhoeddwyd yn:IEEE Transactions on communications 48, 4 (2000).
Prif Awdur: Marchesani, R.
Fformat: Erthygl
Iaith:English
Pynciau:
QAM.
Adaptive LMS compensation.
Adaptive precompensation.
Balance error.
Digital precompensation.
Direct modulation techniques.
Fast convergence.
Performance.
Phase shift keying.
Phase/quadrature modulators.
Quadrature error imperfections.
Quadrature modulators.
Residual carrier.