抗干扰天线是对抗压制式干扰的有效手段。但在某些场合下，由于安装平台孔径等

因素限制了阵元的个数，使得能够抑制的干扰数量减少。针对上述问题，本文提出了一种基于虚

拟阵列扩展的抗干扰抑制算法。该算法首先利用卫星导航信号的非圆特性对接收信号进行非圆扩

展， 然后对扩展后的数据进行干扰抑制处理， 实现了在阵元数不变的条件下增加抗干扰数的目的。

理论分析和计算机仿真证明了所提算法的有效性- Anti-Jamming antenna is an effective way of suppressing oppressive jamming. But the number of antenna

elements is limited by apertures of platform in some cases, resulting in the reduction in the number of jamming which can be

suppressed. In this paper an anti-jamming algorithm based on virtual array extending is proposed. The received signals

become non-circular extended signals because of the non-circular property of satellite navigation signal, and the extended

data are processed by using anti-jamming algorithm for the increase in the number of jamming which can be suppressed.

Theoretical analysis and computer simulation show that the proposed algorithm is effective.