论文标题
被动沟通与环境噪音
Passive communication with ambient noise
论文作者
论文摘要
本文是由无线通信的应用激励，解决了环境噪声源传播的波的传播，并与超材料相互作用。我们讨论了在色散介质中有效的广义Helmholtz-Kirchhoff身份，我们表征了波场经验跨光谱密度的统计特性。然后，我们可以在两个被动阵列之间介绍并分析仅使用环境噪声照明的原始通信方案。被动发射器阵列没有传输任何内容，但它是可调的超材料表面，可以调节其分散属性并在调制中编码消息。由两个接收器组成的被动接收器阵列彼此相距半波长可以解码波场的经验跨光谱密度。
Motivated by applications to wireless communications, this paper addresses the propagation of waves transmitted by ambient noise sources and interacting with metamaterials. We discuss a generalized Helmholtz-Kirchhoff identity that is valid in dispersive media and we characterize the statistical properties of the empirical cross spectral density of the wave field. We can then introduce and analyze an original communication scheme between two passive arrays that uses only ambient noise illumination. The passive transmitter array does not transmit anything but it is a tunable metamaterial surface that can modulate its dispersive properties and encode a message in the modulation. The passive receiver array made of two receivers that are half-a-wavelength apart from each other can decode the message from the empirical cross spectral density of the wave field.
