An interferometer can precisely estimate the direction of the object with less computational complexity.While stealth objects like F-22 disposed rapidly in the last few years, the interferometer is re-quired well performance in low Signal-to-Noise Ratio ( SNR) scenario.A new interferometer direction finding algorithm based on high-order statistics is proposed by analyzing the principle of classic interferom-eter in this paper.Simulation results reveal that the proposed method is of better performance in low SNR scenario compared with the classic interferometer and MUSIC algorithm.%干涉仪可凭较小的复杂度对目标进行较精确的测向，但随着F－22等隐身目标的不断部署，要求干涉仪具有较好的低信噪比性能。在分析经典干涉仪原理的基础上，提出了一种利用信号高阶信息的干涉仪测向算法。仿真实验证明，该算法在低信噪比下的性能优于经典干涉仪方法及MUSIC算法。
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