PAPR reduction technology for ST-OCDM based joint radar-communication signals

Abstract

The joint radar-communication (JRC) system plays an important role in maximized resource utilization. The scale transform-orthogonal chirp division multiplexing (ST-OCDM) signal has become a promising candidate for JRC systems due to its orthogonal chirps with adjustable chirp rate that provide higher flexibility than traditional JRC signals. However, ST-OCDM based JRC signal suffers from the high peak-to-average power ratio (PAPR) problem. This paper introduces several peak clipping methods to solve this problem. The comparison of simulation shows that the multiple scaling signal to clipping noise ratio (MS-SCR) CR technology has the best peak clipping performance.