The ambiguity function analysis of complete complementary sequence in MIMO system

The novelty of Multiple-Input Multiple-Output (MIMO) radar can effectively improve radar system performance by utilizing the multi-antennas and orthogonal signals. While the traditional single sequence can´t keep the complete orthogonality (the sidelobes of the auto-correlation and cross-correlation function equal to zero at all delays). The expression of ambiguity function of complete complementary sequence (CC-S) is deduced in this paper. The simulation results show the validity of the proposed ambiguity function of CC-S. The application of CC-S in MIMO radar is studied and the MIMO radar transmitter model based on CC-S is established. It is demonstrated that the CC-S has the potential to significantly improve the performance of MIMO radar system and the validity of the CC-S applied in MIMO radar is verified.