中文摘要：

多收多发雷达发射正交波形以获得良好的波形分集增益和更高的自由度.为了提高信号的自相关和互相关性能,采用循环算法,得到了具有低自相关旁瓣峰值和互相关峰值的多相编码信号.仿真实验表明,与本文提到其他优化方法相比,循环算法运算量低、收敛速度快.结合优化波形和发疏收密天线阵列结构,实现多发多收雷达杂波抑制和动目标检测,解决了天线阵列稀疏导致的盲速等问题,实现了良好的空时自适应处理性能.

英文摘要：

A MIMO（multiple input and multiple output） radar can achieve waveform diversity advantage and higher degrees of freedom via transmitting orthogonal waveforms.To enhance the pefformance of auto-correlation and cross-correlation of transmitted coeds,cyclic algorithm was used to optimize a set of poly-phase codes with low ASP（auto Correlation sidelobe peak） and low CP（cross correlation peak）.Numerical experiments show that cyclic algorithm costs less computation and features high speed of convergence.Combining the optimized array structure together with optimized poly-phase codes,clutter suppression and moving target indication are realized for MIMO radar.The problem that sparse array will bring grating lobes which will lead to blind speeds is resolved and good STAP（space time adaptive processing） performance is achieved.