和差通道相位动态校正的研究

通过对单脉冲自跟踪系统的分析,阐述了交叉耦合产生的原因,并以此为基础讨论了相位误差对跟踪性能的影响。分析了目前几种相位校正方案的不足,从工程应用和设备改造的角度提出了和差通道相位动态校正的方案。此方案无需加装信号源,室内设备亦无需变动,实现了对和差通道相位的实时校正,且在校正过程中对天线平台稳性没有要求。此外,该方案大量采用现有成熟技术,有效降低技术风险性。

Digital Phase Dynamic Correction of Sum and Difference Channel

Through the analysis on mono-pulse self-tracking system, the paper expounds the reason producting cross-coupling, and discusses the influence of digital phase errors on tracking performance. Based on the analysis on shortcomings of several present digital phase correction schemes, the paper proposes a solution~ of digital phase correction for sum and difference channel from the views of engineering application and equipment modification. The solution doesn＇ t need to add signal generator, not need to change the indoor equipment, realizes the real-time digital phase correction of sum and difference channel, and has not any requirement on the stability of aerial platform. In addition, the solution adopts so much mature technologies, which effectively reduce the technical risks.