A digital transmission system with very high immunity to dynamic multipathdistortion

This paper describes a novel solution to the problem of bandwidth-efficient digital signal transmission in the presence of dynamic multipath distortio n. A burst transmission is comprised of two consecutive data blocks with id entical data that have been processed differently. The two data blocks are transmitted adjacent to each other in time so that the time-variable transm ission channel will apply approximately the same linear distortion to each block,At the receive site, the two blocks are captured and processed togeth er to cancel the effects of the linear distortion, while adding the signal energy from each block.