Method and device for detecting adjacent hidden human body targets based on space-time fusion

Through the time -space -based fusion detection method, the non -causal movement target instructions and the space -time characteristic model are used to solve the problem of low accuracy of adjacent hidden human body target detection in existing technologies, and realize the time and space characteristics of high signal -to -noise ratio and target detection. The accuracy is improved.

CN119375881AActive Publication Date: 2025-01-28AEROSPACE INFORMATION RES INST CAS
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Patent Information

Application Number
CN202411958531.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2025-01-28
Estimated Expiration
2044-12-30

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Abstract

The invention discloses an adjacent hidden human body target detection method and device based on space-time fusion, and belongs to the technical field of low-frequency radar imaging. The method comprises the following steps: processing target echoes collected by a radar by using non-causal moving target indication, removing static target echoes, and obtaining effective multi-channel echo signals; performing coherent imaging on the effective multi-channel echo signals to obtain multiple frames of images; constructing a preliminary spatial-temporal feature model by using the obtained multiple frames of images; and optimizing the preliminary spatial-temporal characteristic model to obtain spatial-temporal characteristics with a high signal-to-noise ratio. According to the method, the time resolution and the spatial resolution of the radar can be fused, the accuracy of adjacent target detection is greatly improved, and the spatial position and the respiratory frequency of the human body target are obtained simultaneously.
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