Designing Periodic Binary Sequence Sets for MIMO PMCW Radar Systems

The design of periodic binary sequence sets for multiple-input multiple-output (MIMO) phase-modulated continuous wave (PMCW) automotive radar is crucial to its performance. While the corresponding optimization problem is NP-hard and high-dimensional, and many existing computational algorithms are not suitable for designing binary sequence sets with long lengths due to their high computational complexities. In this paper, we develop a new algorithm for designing periodic binary sequence sets with good auto- and cross-correlation properties for MIMO PMCW radar. Fast Fourier transform (FFT) can be used to implement the proposed algorithm, making the algorithm computationally efficient and hence can be used to design binary sequence sets with quite long lengths. Several numerical examples are provided to demonstrate the performance of the proposed algorithm.