【摘要】 在对COFDM传输方案的MATLAB和定点C仿真的基础上,结合HDTV地面广播的性能要求,采用FPGA技术实现了信道内编码、调制与帧形成等电路,给出了硬件实现框图以及部分算法的具体实现,通过了发射机系统的联调与测试,验证了设计的合理性与可靠性。更多还原

【Abstract】 Based on the MATLAB simulink and fixed-point C simulation for the transmitter and receiver of COFDM, this paper present the FPGA implementation for the channel inner coding ,modulation and frame structure according to the performance requirement of the HDTV for terrestrial broadcasting .At the same time, this paper present some blocks’ diagrams for the hardware implement. The whole transmitter system based on FPGA has been successfuly linked and debugged , demonstrate the rationality and robustness of the designation .更多还原