Forward Error Correction in Digital Television Broadcast Systems

www.xilinx.com 1 © 2007-2008 Xilinx, Inc. All rights reserved. XILINX, the Xilinx logo, and other designated brands included herein are trademarks of Xilinx, Inc. All other trademarks are the property of their respective owners. Digital television (DTV) broadcasting is in the process of migrating from analog to digital systems, with regions around the world at different stages of adoption. With some governments looking to auction off the remaining analog spectrum, deadlines have been set for regions to switch off analog TV transmission, resulting in growing demand for flexible technologies to enable a smooth transition in the timescales available. Various delivery systems are available for digital TV, but the main ones are satellite, cable, terrestrial, and mobile. Each has a variety of standards and derivatives that are either mature or emerging. These standards aim to ensure interoperability between different vendor’s equipment, including the set-top boxes, cell phones, and other means for DTV reception.