Range sidelobe suppression for OFDM-integrated radar and communication signal

Abstract

To improve the RadCom system of performing both data transmission and radar-sensing functions, here a waveform design method for orthogonal frequency division multiplexing (OFDM) signal is proposed to solve the problem of high range sidelobe level in radar detection process while maintaining a reasonable channel capacity. The method only transmits data in the sub-channels with preferable channel quality. Then, calculate the weight of the chosen subcarriers through the convex optimisation method to traditionally minimise the peak-to-sidelobe (PSL) ratio. Simulation results prove that, compared with traditional range sidelobe suppression method, this algorithm is more suitable for RadCom system.

Keywords

• radar detection
• convex programming
• radar signal processing
• radio networks
• ofdm modulation
• preferable channel quality
• convex optimisation method
• peak-to-sidelobe ratio
• traditional range sidelobe suppression method
• radcom system
• communication signal
• data transmission
• radar-sensing functions
• waveform design method
• high range sidelobe level
• radar detection process
• reasonable channel capacity