Implement Digital TV Terrestrial Broadcasting System Standard Evolved (DTMB-A) Modulator On FPGA

In order to improve the existing Chinese Digital Television Terrestrial Broadcasting System Standard(DTMB)system capacity and anti-jamming capability,this paper proposes a digital terrestrial television broadcasting standard Evolved(DTMB-A)system.This article is targeted to achieve DTMB_A modulator to a digital baseband signal processing algorithm is based,it focuses on the implementation DTMB_A originating system.Firstly,in-depth analysis of the current international standard for digital terrestrial television broadcasting,a careful analysis of the development of various standards and its core technology to do a presentation,then focus explained our existing digital terrestrial television broadcasting standard promotion case,causing the necessity and feasibility studies DTMB_A standards.Then follow the structure DTMB_A originating system,introduced by one of its design principles,including completely customize innovative structural LDPC code,256 APSK mapping,OFDM subcarrier modulation 30024 and the like.On the basis of the principle explain,but also introduces all modules in the FPGA implementation,and gives the simulation data,such as SARR structure LDPC implementation structure to meet the cost-saving features as the core idea.After completing the simulation on modelsim,and briefed on the PCB board testing,the key-board data module via Altera's tools caught out to verify the correctness of the algorithm to achieve platform for comparison.In the case of integrated speed performance available resources,the paper design experience and difficulties summarized and made further research in this area.