Video performance measurements in DTV transmission systems

During the transition from analog to digital, the typical video facility mu st support a mixture of both analog and digital video equipment. This mixed facility requires a combination of analog and digital video performance me asurement tools to verify proper video image quality, In many cases, tradit ional analog video performance measurements can be used to infer proper per formance in a digital video transmission system. This paper summarizes perf ormance issues in analog, digital, and mixed analog/digital video transmiss ion systems and discusses methods that can be used to verify proper video p erformance.