Complementary Codes Approach to Sparse Frequency Waveform Design

Sparse frequency waveform (SFW) is able to utilize spectrums from disjoint channels in a single waveform so as to improve the overall bandwidth that is desirable in both radar and communications. One challenge faced with sparse frequency waveform design is the relatively high range sidelobe level due to spectrum discontinuity. In this paper, a new approach to sparse frequency waveform design with sidelobe suppression is proposed that exploits the sidelobe cancellation property of complementary codes (CC). Different design criterions are proposed to facilitate the requirements from different applications. Numerical simulations have been conducted to illustrate the effectiveness of the proposed approach.