Implementing a 4000 meter HDTV camera system

摘要

Summary form only given, as follows:- The video systems on MBARI'sRemotely Operated Vehicles (ROVs), Ventana and Tiburon, are the singlemost important data source. Real-time images are uplinked for scientificobservation, used as data for post mission processing, and providevisual information for the pilots operating the vehicles. Advances indigital electronics and data compression algorithms combined with theUnited States Governments desire to remain competitive in theinternational television market has resulted in the approval in 1996 ofa new television format, the Digital Television (DTV) standard, thatprovides a five times increase in video image resolution. The MBARI HighDefinition Television (HDTV) project is a development effort that isimplementing this emerging technology on their ROVs. In order to use DTV1920 X 1080 standard HDTV equipment on an ROV several technical problemshad to be addressed. The major design challenges were uplinking the veryhigh data rate video signal, maintaining the extremely high resolutionimaging though the camera housing optical dome correction optics, andrepackaging a commercially available camera for 4000 meter ocean depths.The development of the optical uplink for the 1.485 Gb/sec HDTV serialdata was constrained by the requirement of having all camera relatedfunctions use a maximum of one optical fiber, which provides a directlink from the camera housing itself to the ship based ROV control room.The original camera image quality is preserved to the digital HDTVrecorder by conforming to the SMPTE 292M digital video standard for theentire transport and recording system and remaining in the opticaldomain as much as possible. This is accomplished by placing the opticaltransceivers within the remote camera housing