METHOD FOR SIGNAL ESTIMATION AND COMPENSATION AND APPARATUS USING THE SAME

摘要

A method for signal estimation and compensation and an apparatus using the same, adapted for estimating and compensating an imbalance effect between an in-phase path and a quadrature path of an Orthogonal Frequency Division Multiplexing (OFDM) communication system are provided. The method includes the following steps: receiving a signal, and using a plurality of symbols in a plurality of time frame to generate a plurality of balance coefficient groups, wherein every balance coefficient group includes a plurality of balance coefficient candidates; deriving a balance coefficient according to the balance coefficient set; and compensating the signal according to the balance coefficient.

主权项

1. A method for signal estimation and compensation, adapted for estimating and compensating an imbalance effect between an in-phase path and a quadrature path in an orthogonal frequency division multiplexing communication system, comprising:
(a) receiving a frequency domain signal and generating a plurality of balance coefficient groups by using a plurality of symbols in a plurality of time frames of the frequency domain signal, wherein each of the balance coefficient groups comprising a plurality of balance coefficient candidates; (b) obtaining a balance coefficient based on the balance coefficient groups; and (c) compensating the frequency domain signal based on the balance coefficient.