通过侦干探通多功能一体化物理集成,实现任务可定制,提升作战应用灵活性,是未来电子装备发展的必要趋势之一。针对多功能一体化应用的宽带单元数字化有源相控阵雷达发射多波束时存在的孔径渡越问题,利用基于正交投影的多波束形成算法,联合整数和分数阶时延相结合的数字时延方法完成上行链路设计。通过计算机仿真,对发射多波束的方向图性能、波束间隔离度、增益损失、波束副瓣性能进行考察,验证了设计的有效性。

Physical integration of multi-function system of reconnaissance-interference-detection-and-communication becomes an inevitably trend for next generation of electronic equipment development. To solve the aperture fill time caused by wide-angle scanning of wide-band digital phased array radar, which can be treated as an integrated multi-function system, a design based on or thogonal projection algorithm for transmitting multi-beam forming and digital time-delay compensation method has been presented in this paper. Phased array patterns performance, isolation between the beams, array gain loss as well as side-lobe performance of the transmitting multi-beam forming are simulated and the results demonstrate the effectiveness of the proposed system design.

TN958.92