一种基于虚拟阵元映射的单站无源定位方法

By using virtual array element mapping and equal-length baseline interferometer algorithms, the problem of baseline length limitation in traditional passive positioning methods is solved, achieving high-precision single-station passive positioning, which is suitable for engineering applications.

CN117395608BActive Publication Date: 2026-07-17SOUTHWEST CHINA RES INST OF ELECTRONICS EQUIP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SOUTHWEST CHINA RES INST OF ELECTRONICS EQUIP
Filing Date
2023-08-29
Publication Date
2026-07-17

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Abstract

本发明涉及阵列信号处理技术领域，具体公开了一种基于虚拟阵元映射的单站无源定位方法，通过选择三个实际阵元，将实际阵元的位置和相位映射到虚拟阵元B′，并利用等长基线干涉仪算法对目标进行测距，获得目标的位置；以实际阵元A为观测中心，实际阵元B、实际阵元C分别与实际阵元A的距离为d,且实际阵元B不在实际阵元A与实际阵元C的连线上；虚拟阵元B′与实际阵元A之间的距离为d,且虚拟阵元B′在实际阵元A与实际阵元C的连线上；虚拟阵元B′、实际阵元A、实际阵元C在同一基线上。本发明能够对目标实现定位，且定位误差与理论分析一致；满足高精度定位能力，降低了对阵元的构型要求。
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