CAJ | 학술논문

该文提出了任意发射方向图可以由一组基波束合成的思想.基于该思想,先对集中式 MIMO雷达阵列进行切比雪夫幅度加权构造出一组具有较低副瓣的基波束,然后利用线性规划来快速求解出构成方向图的基波束和其比例系数.与已有的半正定二次规划方法相比较,采用线性规划综合出来的发射方向图具有较低的空域副瓣和较小的空域互相关,并且计算时间较快.
해문제출료임의발사방향도가이유일조기파속합성적사상.기우해사상,선대집중식 MIMO뢰체진렬진행절비설부폭도가권구조출일조구유교저부판적기파속,연후이용선성규화래쾌속구해출구성방향도적기파속화기비례계수.여이유적반정정이차규화방법상비교,채용선성규화종합출래적발사방향도구유교저적공역부판화교소적공역호상관,병차계산시간교쾌.
An idea that an arbitrary transmit beampattern can be equal to a sum of the most basic beams is proposed. Based on the idea and using the Chebyshev weighting technique, the most basic beams are constructed with low side-lobes for a Multiple Input Multiple Output (MIMO) radar system with colocated antennas. The ratios of these beams are fast obtained by solving an effective linear programming. Compared with the existing Semidefinite Quadratic Programming (SQP) method, the designed transmit beampattern can achieve lower spatial side-lobes and cross-correlation. Furthermore, it is faster to design the transmit beampattern.