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Implementation of a Synchronization OFDM Systems Based on DSP

Zhao Feng

Abstract

The synchronization is one of the key technologies for OFDM system,so the structure of OFDM system is introduced around the OFDM synchronization problem.According to the principle of SC algorithm,the OFDM synchronization scheme is proposed and the implementation of the frame synchronization,the frequency offset synchronization and FFT algorithm based on DSP are introduced.By IF docking testing of the experimental system,the test results show that using the correlation of two training symbols 2 with different time intervals,the system can achieve a better synchronization with range of different frequency offset estimation.In addition,the data basis for synchronization testing of the system in the wireless channel is provided in this test program.

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Available abstract

Key concepts: Orthogonal frequency-division multiplexing, Computer science, Frequency offset, Synchronization (alternating current), Fast Fourier transform, Frame synchronization, Digital signal processing, Real-time computing