Analysis of time reversal cavity characteristics based on multipath channel model
نویسندگان
چکیده
The electromagnetic wave time reversal technology using cavity (TRC) has potential applications in many areas, such as pulse compression, power synthesis, perturbation detection, beamforming, etc. Microwave chaotic with multi-path transmission characteristics is usually used TRC. Based on diffraction theory, it can prove that this kind of spatiotemporal focusing and be for compressing pulses, but cannot to analyze the performance cavity. In order obtain a suitable analysis method guide design TRC, work, scattering, diffusion attenuation propagation are analyzed multipath channel model TRC built by theory. Moreover, crosstalk between paths studied, generation mechanism sidelobe, sidelobe shift interference also investigated. addition, under assumption random plane wave, distribution spatial focal spot analyzed, which consistent actual size not only limited limit, related initial size. theoretical results basically experimental numerical simulation results.
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ژورنال
عنوان ژورنال: Chinese Physics
سال: 2022
ISSN: ['1000-3290']
DOI: https://doi.org/10.7498/aps.71.20210701