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菲涅尔区相位修正平板聚焦结构有着一些新的特点，从而可作为聚焦元件构成多波束天线［３］。该文在基于菲涅尔区相位修正平板结构的多波束天线模型下，利用多信号分类（ＭＵＳＩＣ）算法实现了对一维平面内来波方向的估计。通过计算机模拟及对模拟结果的讨论，比较了分别采用噪声子空间和信号子空间进行来波方向估计时的结果，并给出了一些有意义的结论
Fresnel zone phase correction plate focusing structure has some new features, which can be used as a focusing element to form a multi-beam antenna [3]. In the multi-beam antenna model based on the Fresnel zone phase-modified plate structure, the MUSIC algorithm is used to estimate the direction of incoming waves in a one-dimensional plane. Through the computer simulation and the discussion of the simulation results, the results of using the noise subspace and the signal subspace to estimate the incoming wave direction are compared, and some meaningful conclusions are given