Channel estimation

摘要

A transmission apparatus which can realize high demodulation efficiency even in the case where the channel characteristic is deteriorated. The same pattern data as those of the known pattern data contained in the transmitting data to be transmitted to the channel is generated on the receiving side and the correlation between said pattern data and the receiving data to be received through the channel is obtained. Then, the channel characteristic is successively estimated based on the correlation value and the receiving data will be demodulated depending upon said estimated result. Thus, since the channel characteristic can be estimated based on the receiving data, the data can be demodulated correctly even in the case where the receiving data is distorted due to the characteristic deterioration. <IMAGE>