发明名称 |
Adaptive channel equalizer for use in digital communication system utilizing OFDM method |
摘要 |
An adaptive channel equalizer for use in OFDM receiver is disclosed. The adaptive channel equalizer comprises a first complex multiplier for outputting a first in-phase complex multiplication signal and a first quadrature phase complex multiplication signal; a reference signal generator for generating a reference signal; an error calculator for outputting an in-phase error signal and a quadrature phase error signal; a delay unit for outputting an in-phase delay signal and a quadrature phase delay signal; a gain controller for outputting an in-phase gain control signal and a quadrature phase gain control signal; a second complex multiplier for outputting a second in-phase complex multiplication signal and a second quadrature phase complex multiplication signal; an adder for outputting updated in-phase and quadrature phase coefficients; an address generator for generating a write address signal and a read address signal; a storage unit for storing the updated in-phase and quadrature phase coefficients, and outputting the updated coefficients; an initial coefficients generator for generating an initial coefficients; a selecting signal generator for generating a selecting signal; and a multiplexing unit for selecting one of the initial coefficients and the updated coefficients according to the selecting signal.
|
申请公布号 |
US5963592(A) |
申请公布日期 |
1999.10.05 |
申请号 |
US19970982222 |
申请日期 |
1997.12.01 |
申请人 |
DAEWOO ELECTRONICS CO., LTD. |
发明人 |
KIM, YOUNG-SANG |
分类号 |
H04J11/00;H04B7/005;H04L25/03;H04L27/26;H04N7/015;(IPC1-7):H03H7/30;H03H7/40 |
主分类号 |
H04J11/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|