Design and Implementation of FPGA for Digital Baseband Transmission System

In order to improve system integration degree and system reliability,reduce power consumption and cost,and improve system flexibility,a method to design digital baseband system with hardware description language(VHDL) adopting the very higt-speed integrated circuit is put forward.The design principle of signal pettern in digital baseband system,the encoding and decoding principles of signal in the digital baseband system are elaborated.The encoder and the decoder for digital baseband signal were designed and simulated with VHDL.The digital baseband system was designed and simulated with schematic diagram design method.The design of the whole system is completed on the platform of Quartus Ⅱ and implemented with ACEX1K-EP1K30TC144-1 of Altera.