| 摘要 |
<p>The present invention relates to a method for estimating an impulse response and a receiver in a radio system where the signal to be sent comprises a known training sequence (208), which receiver comprises means (304) for sampling the received signal, and means (400) for calculating a first estimate for the impulse response by means of the known training sequence. To enable an accurate determination of impulse response, the receiver comprises means (406, 408) for making preliminary decisions of the received samples by means of the first impulse response estimate, means (410) for calculating an error value of the estimated samples and the received samples calculated by means of the preliminary decisions, means (410) for calculating a second estimate of the impulse response by minimizing said error value, and means (410) for calculating a new estimate for the impulse response by combining the first and second estimates to one another.</p> |
