Design of Hybrid Digital-Analog Transmission System Based on FPGA
This paper expounds the design of a hybrid transmission system suitable for digital and analog signals and the hybrid transmission of digital and analog signals in the same channel.The AM-2FSK hybrid modulation scheme is used to realize the hybrid transmission of digital and analog signals;The devices with satisfactory performance indexes are selected to form the transmitter and receiver circuit;The FPGA program design and simulation are carried out.The logic functions of each module of the transmitter program and the receiver program are correct,and the simulation results meet the expectations;The test results show that the transmission system can transmit and receive analog signals and digital signals at the same time,the received signal waveform is regular without distortion,the data displayed by the nixie tube at the receiver is accurate,the hybrid digital-analog transmission system was realized and verified.
circuit designFPGAmodule designhybrid digital-analog ICfunctional test
NETL
NSTL
万方数据
维普
