Identifying multipath within terrestrial video using a locally modified GCR signal

The results of a new simple method of obtaining the multipath channel distortion for terrestrial transmitted video is presented. It finds in isolation, the VSB induced detected quadrature ghost relative amplitudes which had previously been difficult. The method is based on correlation of the received signal with a version of the PAL GCR standard signal which has been modified by the inherent quadrature forming filter spectrum of the receiver VSB filter.