基于多波位波束搜索的大型相控阵阵列信号处理技术

数字波束合成技术是通信对抗领域里一项至关重要的技术，通过在数字域对信号幅度和相位进行控制，可以形成多个独立可控的波束，形成波束指向精度高、灵活可变，且理论上不受波束形成数量的限制。本文针对大型相控阵需求，利用波束合成原理，并结合大规模阵列信号同步技术与相控阵幅相校准技术，实现一种可同时产生180个偏馈波束的多波位波束搜索系统。该系统可以利用波束群的实时扫描功能，实现大范围的波束搜索，更快定位目标角度。该系统已在工程上进行应用，并成功执行大型测控任务，取得圆满成功。

Technology of Array Signal Processing for Large Phased Arrays Based on Muti-beam Position Search

Digital beam forming technology is a key in the field of communication countermeasures. By controlling the signal amplitude and phase in the digital domain, multiple independent and controllable beams can be formed, with high precision and flexibility in beam pointing, and theoretically not limited by the number of beam forming. The article focuses on the requirements of large phased arrays, utilizes the principle of digital beam forming, and combines large-scale arrays signal synchronization technology and phased arrays amplitude-phase calibration technique, implements a multi-wave position beam search system that can simultaneously generate 180 biased beams. It can utilize the real-time scanning function of the beam group to achieve large-scale beam search and faster target angle positioning. The system has been applied in engineering and successfully executed a large-scale measurement and control task, achieves complete success.