基于序列锥规划的MIMO雷达正交连续相位编码波形设计  

Design for orthogonal serial phase code waveform of MIMO radar based on sequential cone programming

作　　者：黄中瑞[1] 牛朝阳[1] 张剑云[1] 

机构地区：[1]电子工程学院,安徽合肥230037

出　　处：《系统工程与电子技术》2015年第9期2000-2009,共10页Systems Engineering and Electronics

基　　金：国家自然科学基金(61201279);安徽省自然科学基金(1408085MF128)资助课题

摘　　要：提出了一种基于序列锥规划的多输入多输出雷达正交连续相位编码波形设计方法,以最小化发射信号的自相关峰值旁瓣电平和互相关峰值电平为目标函数,利用序列锥规划在每一个迭代点对其进行一阶泰勒近似,将原问题转化为一系列二阶锥规划子问题,以便采用原对偶内点算法进行有效求解;为了进一步提高算法的优化性能,对相位增量的门限进行线性变化约束。仿真表明,发射阵元个数和编码长度一定时,所提方法设计的正交波形性能明显优于现有方法,而且该方法能够对正交波形的自相关峰值旁瓣电平和互相关峰值电平分别进行定量控制,以便兼顾两者的性能指标,因而在波形设计时更具灵活性。A method for the orthogonal serial phase code waveform design of multiple-input multiple-outpm radar based on sequential cone programming is proposed, which minimizes the auto-correlation peak sidelobe level （APSL） and cross-correlation peak level （CCPL） of transmit signal as its objective function. Taylor ap proximation is adopted to transform the original problem which is non convex into a series second-order cone programming problems via sequential cone programming framework in each iterative point. Moreover, in order to improve the optimal results, the threshold of phase increment is constrained as a linear function. Finally, simulations show that the orthogonal waveform performance is better than the reference method when the num- ber of the transmit array and the code is same. At the same time, the APSL and CCPL can be accurately con- trolled respectively by using the proposed method, which is very flexible for the orthogonal waveform design.

关 键 词：多输入多输出雷达 正交波形设计 序列锥规划 二阶锥规划 自相关峰值旁瓣电平 互相关峰值电平 

分 类 号：TN957[电子电信—信号与信息处理]