Adaptive channel equalizer for use in a the ofdm - a method using digital communication system

摘要

the invention relates to an adaptive kanalentzerrer for use in an ofdm receiver.the adaptive kanalentzerrer has a first complex multiplizierer (511) to output a first complex in phase multiplikationssignals (c1xi) and a first complex quadrature phase multiplikationssignals (c1xq)a referenzsignal generator (512) to generate an referenzsignals (ri); a fehlerberechnungseinrichtung (513) to output a phase fehlersignals (egg) and a quadrature phase fehlersignals (eq); a verzu00f6gerungseinheit (514) to output a in - phase and a verzu00f6gerungssignals the quadrature phase verzu00f6gerungssignals; a verstu00e4rkungssteuerung (515) to spend an in phase verstu00e4rkungssteuerungssignals and a quadrature phase verstu00e4rkungssteuerungssignals; a second komplexmultiplizierer (516) to output a second complex in phase multiplikationssignals (c2ei) and a second complex quadrature phase multiplikationssignals (c2eq); an adder (51 7) to spend new in - phase (wi (n + 1)) and quadrature phase coefficients (wq (n + 1)); an addressthis generator (518) to generate a write address signal (write) and a leseadresse signal (read); a storage unit for storing the renewed (519) in phase and quadrature phase coefficients, and to spend the renewed coefficients; a startkoeffizienten generator (521) z in order to generate startkoeffizienten; a auswahlsignal generator...