摘要
针对毫米波复合制导体制下圆锥台共形阵列与多模传感器孔径复合问题,构建了圆锥矩形栅格阵列,基于线性优化二分法提出了一种圆锥台共形阵列孔径规划方法。为了克服圆锥台共形阵列的孔径尺寸规划受阵列结构和波束扫描特性的限制,首先任意选定若干扫描角度分别进行波束综合;然后以综合后的波束宽度、阵列增益为参考,确定波束扫描区域;最后在波束扫描范围内保持波束基本性能不变的前提下,基于线性优化二分法对圆锥结构进行截取,获得满足波束综合性能的圆锥台阵列孔径尺寸。仿真结果表明该方法合理、有效。
Based on the dichotomy in linear optimization,a novel programming method of aperture size is proposed to study the aperture compound of conical array and multi-mode sensors in millimeter wave compound guidance system.And rectangular grids are laid out on the cone surface.To overcome the limit of array configuration and beam scanning characteristics to the programming of aperture size,the beams are synthesized at different pointing direction firstly.Secondly,the beam width and array directivity are taken as reference to determine the beam scanning zone.Finally,aperture size of conical array is obtained based on the dichotomy in linear optimization,while the performance of scanning beams is held.Simulation results verify the rationality and efficiency of the proposed method.
出处
《系统工程与电子技术》
EI
CSCD
北大核心
2011年第7期1449-1453,共5页
Systems Engineering and Electronics
基金
国家自然科学基金(60901068)
国家部委基金(9140A07040807DZ0127)资助课题
关键词
毫米波
复合制导
共形阵列
孔径
millimeter wave
compound guidance
conformal array
aperture
