一种谐波雷达特定非线性目标识别方法及系统
By using spectral gap analysis and dual-frequency coherent excitation fields, combined with high-order mixing decoupling and phase difference processing, the problem of accuracy and efficiency of nonlinear target recognition in complex electromagnetic environments by harmonic radar is solved, and high-precision identification and positioning of specific nonlinear targets is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- LUOYANG INST OF SCI & TECH
- Filing Date
- 2026-04-23
- Publication Date
- 2026-07-17
AI Technical Summary
Existing harmonic radars struggle to effectively excite targets to produce stable nonlinear mixing responses in complex electromagnetic environments, resulting in insufficient accuracy in scattering signal extraction and analysis. Furthermore, the signal processing workflow lacks synergistic adaptability, impacting the accuracy and efficiency of target identification.
By performing spectral gap analysis on the background electromagnetic characteristic parameters of the detection area, a dual-frequency coherent excitation field is constructed to excite potential nonlinear targets to generate nonlinear mixing responses. The high-order intermodulation components of specific nonlinear targets are extracted through high-order mixing decoupling and phase difference processing, and the phase characteristics are combined for accurate determination and spatial positioning.
It achieves high-precision nonlinear target recognition in complex electromagnetic environments, improves the accuracy of target feature component extraction and identification, ensures the accuracy and efficiency of signal processing, and enhances the accuracy of target spatial positioning and the reliability of recognition results.
Smart Images
Figure CN122085243B_ABST