一种基于数字波束合成的高灵敏度阵列测向方法及装置

By combining digital beamforming and two-dimensional centroid iterative estimation with outlier elimination algorithm, the problems of accuracy and complexity in direction finding in existing technologies are solved, and high-sensitivity array direction finding is achieved, which can maintain high accuracy even in low signal-to-noise ratio environments.

CN120802164BActive Publication Date: 2026-07-17BEIJING INST OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BEIJING INST OF TECH
Filing Date
2025-07-01
Publication Date
2026-07-17

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Abstract

本发明属于信号处理技术领域，具体涉及一种基于数字波束合成的高灵敏度阵列测向方法。具体过程为：步骤一，在测向过程中，阵列接收信源辐射信号后，进行数字波束形成，遍历搜索感兴趣的空域，使得辐射信号从其来波方向对应的波束主瓣宽度内入射，而其他来波方向的信号只能在波束的副瓣入射；步骤二，数字波束形成，存储每个入射角下波束形成后信号的功率，得到二维空域搜索矩阵；步骤三，选出二维空域搜索矩阵的最大值点，保存对应坐标，在以最大值点为中心的正方形区域内进行二维重心法估计并进行迭代计算，通过对多次角度估计结果进行野值剔除，得到最终角度估计结果。
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