Single-carrier System Of Terrestrial Digital Tv Transmission Balanced Design And System Simulation

The dissertation discusses mainly the research and simulation of the equalization for Single-Carrier(SC) system of terrestrial digital television broadcasting. At first, the development with terrestrial digital television broadcasting are presented, and standards of terrestrial digital television broadcasting in some country are simply introduced. Then, in this paper ,channel model and equalization theory are described. At the same time, the writer constructs a single-carrier(SC) system and researchs some equalization algorithms. Comparing SC sytem with OFDM system ,the main advantages are : reduces demands of frequency synchronization, the peak-to-average transmitted power ratio is smaller. With increase in delay spreads of multipath channel complexity of equalization system in time domain is not accept. So in this paper, equalization done in the frequency domain. But in the system of demodulation done in time domain,if linear equalization algorithm is adopted that noise power is magnified for equalization in equalization algorithms domain and diffuse in all of time domain,in deep fading channel, equalization is accept. SO in this paper,the equalization algorithms combine disposal method in time domain with in frequency domain(single-carrier frequency domain DFE) . Result of simulation show that even in deep fading channel, capability of equalization is great. What the writer has done in the project is as follows: Completing construction of modules and system, completing the debugging of SC system.. Completing the design of modules about equalization. Transplanting all C codes into SPW.