Research and Design on the Key Technology of DVB-T Baseband System

DVB-T standard has been one of the most important standards for terrestrial transmission in the world. According to investigate the principle of DVB-T baseband system, this paper focus on the key module of DVB-T modulator and synchronous module. Firstly, this paper establishes a complete DVB-T transmitter system, then detailed analysis, improves and simulates the synchronization algorithms based on existing algorithms. At last, we build a platform of this system, debug and verify the module through the FPGA chip of Xilinx. As the test results given at the end of this paper, this system meets the requirements of DVB-T and has a good performance.