Real-time Orthogonal Frequency Division Multiplexing Passive Optical Network (OFDM-PON) has been
extensively studied at home and abroad in recent years. In this paper, we realize a real-time OFDM transmitter system
and introduce Savitzky-Golay filter to smooth the transmitted signal into the communication system. Firstly, the
architecture of the real-time OFDM-PON was proposed in which a Xilinx V5 FPGA is used to generate the OFDM
signal and a S-G filter is used to smooth the signal and weaken the noise. At the receiver, we use MATLAB to recover
the signal and simulate the constellation diagram and bit error rate. What’s more, this paper introduces the basic principle
of S-G filter and analysis the performance of the filter when it is used in an OFDM system. In conclusion, the simulation
results show that the S-G filter implemented in the real-time OFDM-PON system is easy to realize that it can reduce the
complexity of the system and bit error rate at the same time. As a result, it is proofed to be suitable for the real-time
OFDM-PON system.
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