On radar and communication integrated system using OFDM signal

In view of the defects that low data transmission rate and high range sidelobes in radar and communication integrated systems based on traditional orthogonal frequency division multiplexing (OFDM), an OFDM integrated waveform structure and associated processing technique is proposed. Firstly, a phase-coded OFDM (PC-OFDM) integrated waveform based on cyclic shifts of m-sequence is given, where corresponding time shift is controlled by communication data. Then, the radar processing technique based on discrete Fourier transform (DFT) and correlation is analyzed in detail. Theoretical analysis and simulation results show that the proposed method can achieve joint high-resolution range and velocity estimation of the target under high data transmission rate.