CAJ | 학술논문

为了研究相控阵天线的通道误差对数字波束形成的影响，首先对通道误差进行了建模，并推导得出通道间幅度误差对波束指向的影响不大，但会使波束方向图的主瓣增益降低，旁瓣电平升高；相位误差不仅会使波束主瓣增益降低，旁瓣电平抬高，还会引起波束指向偏差，最后用Matlab对此结论进行了仿真验证。
위료연구상공진천선적통도오차대수자파속형성적영향，수선대통도오차진행료건모，병추도득출통도간폭도오차대파속지향적영향불대，단회사파속방향도적주판증익강저，방판전평승고；상위오차불부회사파속주판증익강저，방판전평태고，환회인기파속지향편차，최후용Matlab대차결론진행료방진험증。
In order to research the influence of channel uncertainty of phased array antenna in digital beam forming,the channel error is modeled,and a conclusion is obtained that the amplitude error between channels has little influence on the beam pointing but can lower the main lobe gain of beam pattern and increase the side lobe level. The phase error can not only re-duce the main lobe gain and raise the side lobe level,but also cause beam pointing deviation. Finally,the result is proved by Matlab simulation.