00000cab a22000003a 4500 UP-99796217609500238 Buklod 20231007234335.0 m |o d | ta 101008s xx d | ||r ||||| || DENGII eng Marchesani, R. Digital precompensation of imperfections in quadrature modulators. pp. 552-556 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 by some order of magnitude 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. IEEE Transactions on communications 48, 4 (2000). FO UPD DENG-II Article