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空间谱估计测向是建立在严格的信号模型和复杂的谱估计理论上的一种测向体制,具有高精度、高分辨率和抗多径干扰等优异性能,在无线电监测、测向中有着广阔的应用前景。从空间谱估计测向的系统组成、原理、常用算法及在实际应用中遇到的技术难题等方面,介绍空间谱估计测向技术,以期读者对这一技术有更全面的了解。
Spatial spectrum estimation and direction finding is a direction finding system based on the rigorous signal model and complex spectrum estimation theory. It has the excellent performance of high precision, high resolution and anti-multipath interference. It has the advantages in radio monitoring and direction finding Broad application prospects. This paper introduces the spatial spectrum estimation and direction finding technology from the aspects of system composition, principle, common algorithms and technical problems encountered in practical application of spatial spectrum estimation, so as to provide readers with a more complete understanding of this technique.