Radar Imaging Deception and Jamming Method and Device Based on Dual Programmable Metasurfaces

By using spatial and temporal coding modulation of a dual programmable metasurface architecture, the directional control problem of programmable metasurfaces under oblique incidence conditions was solved, enabling high-resolution radar imaging deception and jamming.

CN117930150BActive Publication Date: 2026-06-30NAT UNIV OF DEFENSE TECH
2 Cites 0 Cited by

Patent Information

Application Number
CN202410231058.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-02-29
Publication Date
2026-06-30
Estimated Expiration
2044-02-29

AI Technical Summary

Technical Problem

Existing programmable metasurfaces have difficulty effectively controlling the emission direction of reflected signals under oblique incidence conditions, resulting in a decrease in signal-to-noise ratio and failure of time-coded modulation strategies, making it impossible to effectively perform radar imaging deception and jamming.

Method used

A dual-programmable metasurface architecture is adopted. The first programmable metasurface is used for spatial coding beam scanning and signal enhancement, and the second programmable metasurface is used for spatial and temporal coding modulation to achieve directional alignment and spectral structure modulation of radar signals.

Benefits of technology

It improves the scattering intensity under oblique incidence conditions, generates high-resolution range images, and produces multiple synthetic false targets on the imaging radar, achieving efficient radar imaging deception and jamming.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

This invention relates to a radar imaging deception jamming method and device based on dual programmable metasurfaces. The method includes: S1. controlling the spatial coding of a first programmable metasurface to perform beam scanning and aligning its main lobe of the radiation pattern with the incident direction of a radar signal for reception; S2. enhancing the incident radar signal and transmitting the enhanced radar signal to a second programmable metasurface; S3. controlling the spatial and temporal coding of the second programmable metasurface to modulate the temporal representation and spectral structure of the enhanced radar signal, and transmitting the modulated radar signal with the incident direction aligned. This invention, by employing a dual metasurface architecture, integrates each metasurface with its respective horn antenna to form a radio frequency transceiver assembly. The receiving metasurface determines the direction of the incident radar signal through spatial beam scanning, and the transmitting metasurface transmits the modulated signal in the same direction, thus solving the problem of sensitivity to the incident angle.
Need to check novelty before this filing date? Find Prior Art